65156253 has 4 divisors (see below), whose sum is σ = 86875008. Its totient is φ = 43437500.

The previous prime is 65156251. The next prime is 65156279. The reversal of 65156253 is 35265156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65156253 - 2¹ = 65156251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65156251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10859373 + ... + 10859378.

It is an arithmetic number, because the mean of its divisors is an integer number (21718752).

Almost surely, 2^65156253 is an apocalyptic number.

It is an amenable number.

65156253 is a deficient number, since it is larger than the sum of its proper divisors (21718755).

65156253 is a wasteful number, since it uses less digits than its factorization.

65156253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21718754.

The product of its digits is 27000, while the sum is 33.

The square root of 65156253 is about 8071.9423313104. The cubic root of 65156253 is about 402.3944977654.

The spelling of 65156253 in words is "sixty-five million, one hundred fifty-six thousand, two hundred fifty-three".