625062420 has 120 divisors (see below), whose sum is σ = 1970210088. Its totient is φ = 165888000.

The previous prime is 625062413. The next prime is 625062469. The reversal of 625062420 is 24260526.

It can be written as a sum of positive squares in 4 ways, for example, as 335109636 + 289952784 = 18306^2 + 17028^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 389620 + ... + 391220.

Almost surely, 2^625062420 is an apocalyptic number.

625062420 is a gapful number since it is divisible by the number (60) 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 625062420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985105044).

625062420 is an abundant number, since it is smaller than the sum of its proper divisors (1345147668).

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

625062420 is a wasteful number, since it uses less digits than its factorization.

625062420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 625062420 is about 25001.2483688315. The cubic root of 625062420 is about 855.0164355105.

The spelling of 625062420 in words is "six hundred twenty-five million, sixty-two thousand, four hundred twenty".