253442535 has 32 divisors (see below), whose sum is σ = 410434752. Its totient is φ = 133539840.

The previous prime is 253442509. The next prime is 253442557. The reversal of 253442535 is 535244352.

It is a happy number.

It is not a de Polignac number, because 253442535 - 2⁵ = 253442503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253442496 and 253442505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751887 + ... + 752223.

It is an arithmetic number, because the mean of its divisors is an integer number (12826086).

Almost surely, 2^253442535 is an apocalyptic number.

253442535 is a deficient number, since it is larger than the sum of its proper divisors (156992217).

253442535 is a wasteful number, since it uses less digits than its factorization.

253442535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its digits is 72000, while the sum is 33.

The square root of 253442535 is about 15919.8786113463. The cubic root of 253442535 is about 632.8389014256.

Adding to 253442535 its reverse (535244352), we get a palindrome (788686887).

The spelling of 253442535 in words is "two hundred fifty-three million, four hundred forty-two thousand, five hundred thirty-five".