65072535 has 32 divisors (see below), whose sum is σ = 116363520. Its totient is φ = 30777600.

The previous prime is 65072521. The next prime is 65072551. The reversal of 65072535 is 53527056.

It is not a de Polignac number, because 65072535 - 2⁸ = 65072279 is a prime.

It is a super-2 number, since 2×65072535² = 8468869622652450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 65072496 and 65072505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1956 + ... + 11574.

It is an arithmetic number, because the mean of its divisors is an integer number (3636360).

Almost surely, 2^65072535 is an apocalyptic number.

65072535 is a deficient number, since it is larger than the sum of its proper divisors (51290985).

65072535 is a wasteful number, since it uses less digits than its factorization.

65072535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9679.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 65072535 is about 8066.7549237596. The cubic root of 65072535 is about 402.2220809493. Note that the first 3 decimals are identical.

The spelling of 65072535 in words is "sixty-five million, seventy-two thousand, five hundred thirty-five".