253501434 has 32 divisors (see below), whose sum is σ = 564661440. Its totient is φ = 84301776.

The previous prime is 253501403. The next prime is 253501513. The reversal of 253501434 is 434105352.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 253501398 and 253501407.

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, 18624 + ... + 29220.

It is an arithmetic number, because the mean of its divisors is an integer number (17645670).

Almost surely, 2^253501434 is an apocalyptic number.

253501434 is an abundant number, since it is smaller than the sum of its proper divisors (311160006).

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

253501434 is a wasteful number, since it uses less digits than its factorization.

253501434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11051 (or 11045 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 253501434 is about 15921.7283609538. The cubic root of 253501434 is about 632.8879206788.

Adding to 253501434 its reverse (434105352), we get a palindrome (687606786).

The spelling of 253501434 in words is "two hundred fifty-three million, five hundred one thousand, four hundred thirty-four".