65525524920 has 48 divisors (see below), whose sum is σ = 212957957160. Its totient is φ = 17473473216.

The previous prime is 65525524901. The next prime is 65525524943. The reversal of 65525524920 is 2942552556.

65525524920 is a `hidden beast` number, since 6 + 5 + 5 + 2 + 552 + 4 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91007314 + ... + 91008033.

Almost surely, 2^65525524920 is an apocalyptic number.

65525524920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65525524920 is an abundant number, since it is smaller than the sum of its proper divisors (147432432240).

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

65525524920 is a wasteful number, since it uses less digits than its factorization.

65525524920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182015364 (or 182015357 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 65525524920 in words is "sixty-five billion, five hundred twenty-five million, five hundred twenty-four thousand, nine hundred twenty".