4952171520 has 220 divisors, whose sum is σ = 17747268924. Its totient is φ = 1320468480.

The previous prime is 4952171513. The next prime is 4952171557. The reversal of 4952171520 is 251712594.

4952171520 is a `hidden beast` number, since 49 + 5 + 21 + 71 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1534132224 + 3418039296 = 39168^2 + 58464^2 .

It is a super-2 number, since 2×4952171520² = 49048005526998220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 408750 + ... + 420690.

Almost surely, 2^4952171520 is an apocalyptic number.

4952171520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4952171520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8873634462).

4952171520 is an abundant number, since it is smaller than the sum of its proper divisors (12795097404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4952171520 is a wasteful number, since it uses less digits than its factorization.

4952171520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11978 (or 11951 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 4952171520 is about 70371.6670258706. The cubic root of 4952171520 is about 1704.5060984310.

The spelling of 4952171520 in words is "four billion, nine hundred fifty-two million, one hundred seventy-one thousand, five hundred twenty".