253055401515 has 48 divisors (see below), whose sum is σ = 501379609536. Its totient is φ = 115661952000.

The previous prime is 253055401481. The next prime is 253055401639. The reversal of 253055401515 is 515104550352.

253055401515 is a `hidden beast` number, since 2 + 53 + 0 + 55 + 40 + 1 + 515 = 666.

It is not a de Polignac number, because 253055401515 - 2⁹ = 253055401003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253055401515.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1784215 + ... + 1920815.

It is an arithmetic number, because the mean of its divisors is an integer number (10445408532).

Almost surely, 2^253055401515 is an apocalyptic number.

253055401515 is a deficient number, since it is larger than the sum of its proper divisors (248324208021).

253055401515 is a wasteful number, since it uses less digits than its factorization.

253055401515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142500 (or 142497 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

Adding to 253055401515 its reverse (515104550352), we get a palindrome (768159951867).

The spelling of 253055401515 in words is "two hundred fifty-three billion, fifty-five million, four hundred one thousand, five hundred fifteen".