285495957 has 24 divisors (see below), whose sum is σ = 448098560. Its totient is φ = 174493440.

The previous prime is 285495937. The next prime is 285495971. The reversal of 285495957 is 759594582.

285495957 is a `hidden beast` number, since 2 + 8 + 5 + 49 + 595 + 7 = 666.

It is not a de Polignac number, because 285495957 - 2⁶ = 285495893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285495937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21628 + ... + 32229.

Almost surely, 2^285495957 is an apocalyptic number.

It is an amenable number.

285495957 is a deficient number, since it is larger than the sum of its proper divisors (162602603).

285495957 is a wasteful number, since it uses less digits than its factorization.

285495957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53913 (or 53910 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 54.

The square root of 285495957 is about 16896.6256098666. The cubic root of 285495957 is about 658.4659481529.

The spelling of 285495957 in words is "two hundred eighty-five million, four hundred ninety-five thousand, nine hundred fifty-seven".