253645613430 has 64 divisors (see below), whose sum is σ = 664527691008. Its totient is φ = 61449349760.

The previous prime is 253645613411. The next prime is 253645613437. The reversal of 253645613430 is 34316546352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253645613437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250252 + ... + 754928.

It is an arithmetic number, because the mean of its divisors is an integer number (10383245172).

Almost surely, 2^253645613430 is an apocalyptic number.

253645613430 is an abundant number, since it is smaller than the sum of its proper divisors (410882077578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253645613430 is a wasteful number, since it uses less digits than its factorization.

253645613430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506221.

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 253645613430 in words is "two hundred fifty-three billion, six hundred forty-five million, six hundred thirteen thousand, four hundred thirty".