253415566 has 16 divisors (see below), whose sum is σ = 404717040. Its totient is φ = 118592640.

The previous prime is 253415563. The next prime is 253415573. The reversal of 253415566 is 665514352.

253415566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×253415566² = 128438898182200712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253415563) 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, 14436 + ... + 26743.

It is an arithmetic number, because the mean of its divisors is an integer number (25294815).

Almost surely, 2^253415566 is an apocalyptic number.

253415566 is a deficient number, since it is larger than the sum of its proper divisors (151301474).

253415566 is a wasteful number, since it uses less digits than its factorization.

253415566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41379.

The product of its digits is 108000, while the sum is 37.

The square root of 253415566 is about 15919.0315660218. The cubic root of 253415566 is about 632.8164536838.

The spelling of 253415566 in words is "two hundred fifty-three million, four hundred fifteen thousand, five hundred sixty-six".