253620105 has 32 divisors (see below), whose sum is σ = 415362816. Its totient is φ = 132098304.

The previous prime is 253620091. The next prime is 253620179. The reversal of 253620105 is 501026352.

It is not a de Polignac number, because 253620105 - 2⁶ = 253620041 is a prime.

It is a super-2 number, since 2×253620105² = 128646315320422050, which contains 22 as substring.

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, 208479 + ... + 209691.

It is an arithmetic number, because the mean of its divisors is an integer number (12980088).

Almost surely, 2^253620105 is an apocalyptic number.

It is an amenable number.

253620105 is a deficient number, since it is larger than the sum of its proper divisors (161742711).

253620105 is a wasteful number, since it uses less digits than its factorization.

253620105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 253620105 is about 15925.4546245939. The cubic root of 253620105 is about 632.9866626920.

Adding to 253620105 its reverse (501026352), we get a palindrome (754646457).

The spelling of 253620105 in words is "two hundred fifty-three million, six hundred twenty thousand, one hundred five".