61925520 has 40 divisors (see below), whose sum is σ = 191969856. Its totient is φ = 16513408.

The previous prime is 61925519. The next prime is 61925573. The reversal of 61925520 is 2552916.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 128772 + ... + 129251.

Almost surely, 2^61925520 is an apocalyptic number.

61925520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61925520 is an abundant number, since it is smaller than the sum of its proper divisors (130044336).

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

61925520 is a wasteful number, since it uses less digits than its factorization.

61925520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258039 (or 258033 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 61925520 is about 7869.2769680575. The cubic root of 61925520 is about 395.6306115668.

The spelling of 61925520 in words is "sixty-one million, nine hundred twenty-five thousand, five hundred twenty".