253912534 has 4 divisors (see below), whose sum is σ = 380868804. Its totient is φ = 126956266.

The previous prime is 253912511. The next prime is 253912553. The reversal of 253912534 is 435219352.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253912534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63478132 + ... + 63478135.

It is an arithmetic number, because the mean of its divisors is an integer number (95217201).

Almost surely, 2^253912534 is an apocalyptic number.

253912534 is a deficient number, since it is larger than the sum of its proper divisors (126956270).

253912534 is a wasteful number, since it uses less digits than its factorization.

253912534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126956269.

The product of its digits is 32400, while the sum is 34.

The square root of 253912534 is about 15934.6331617643. The cubic root of 253912534 is about 633.2298512983.

The spelling of 253912534 in words is "two hundred fifty-three million, nine hundred twelve thousand, five hundred thirty-four".