85256357 has 8 divisors (see below), whose sum is σ = 86916480. Its totient is φ = 83603520.

The previous prime is 85256341. The next prime is 85256359. The reversal of 85256357 is 75365258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85256357 - 2⁴ = 85256341 is a prime.

It is a super-2 number, since 2×85256357² = 14537292817822898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85256359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25757 + ... + 28877.

It is an arithmetic number, because the mean of its divisors is an integer number (10864560).

Almost surely, 2^85256357 is an apocalyptic number.

It is an amenable number.

85256357 is a deficient number, since it is larger than the sum of its proper divisors (1660123).

85256357 is a wasteful number, since it uses less digits than its factorization.

85256357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its digits is 252000, while the sum is 41.

The square root of 85256357 is about 9233.4369007429. The cubic root of 85256357 is about 440.1245463542.

The spelling of 85256357 in words is "eighty-five million, two hundred fifty-six thousand, three hundred fifty-seven".