253415515121420 has 48 divisors (see below), whose sum is σ = 533284807890240. Its totient is φ = 101154368657664.

The previous prime is 253415515121411. The next prime is 253415515121441. The reversal of 253415515121420 is 24121515514352.

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, 274489622 + ... + 275411298.

It is an arithmetic number, because the mean of its divisors is an integer number (11110100164380).

Almost surely, 2^{253415515121420} is an apocalyptic number.

253415515121420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253415515121420 is an abundant number, since it is smaller than the sum of its proper divisors (279869292768820).

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

253415515121420 is a wasteful number, since it uses less digits than its factorization.

253415515121420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950402 (or 950400 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 41.

The spelling of 253415515121420 in words is "two hundred fifty-three trillion, four hundred fifteen billion, five hundred fifteen million, one hundred twenty-one thousand, four hundred twenty".