253442655 has 16 divisors (see below), whose sum is σ = 450564960. Its totient is φ = 135169344.

The previous prime is 253442627. The next prime is 253442663. The reversal of 253442655 is 556244352.

It is not a de Polignac number, because 253442655 - 2⁶ = 253442591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938542 + ... + 938811.

It is an arithmetic number, because the mean of its divisors is an integer number (28160310).

Almost surely, 2^253442655 is an apocalyptic number.

253442655 is a deficient number, since it is larger than the sum of its proper divisors (197122305).

253442655 is a wasteful number, since it uses less digits than its factorization.

253442655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877367 (or 1877361 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 253442655 is about 15919.8823802188. The cubic root of 253442655 is about 632.8390013044.

The spelling of 253442655 in words is "two hundred fifty-three million, four hundred forty-two thousand, six hundred fifty-five".