253445325015402 has 48 divisors (see below), whose sum is σ = 600198879178080. Its totient is φ = 76819248909216.

The previous prime is 253445325015371. The next prime is 253445325015431. The reversal of 253445325015402 is 204510523544352.

253445325015402 is a `hidden beast` number, since 2 + 5 + 3 + 4 + 4 + 53 + 2 + 50 + 1 + 540 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8082817752 + ... + 8082849107.

It is an arithmetic number, because the mean of its divisors is an integer number (12504143316210).

Almost surely, 2^{253445325015402} is an apocalyptic number.

253445325015402 is an abundant number, since it is smaller than the sum of its proper divisors (346753554162678).

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

253445325015402 is a wasteful number, since it uses less digits than its factorization.

253445325015402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16165666947 (or 16165666944 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 45.

Adding to 253445325015402 its reverse (204510523544352), we get a palindrome (457955848559754).

The spelling of 253445325015402 in words is "two hundred fifty-three trillion, four hundred forty-five billion, three hundred twenty-five million, fifteen thousand, four hundred two".