525505205122142 has 32 divisors (see below), whose sum is σ = 906609115888320. Its totient is φ = 223780769971200.

The previous prime is 525505205122133. The next prime is 525505205122169. The reversal of 525505205122142 is 241221502505525.

It is a super-2 number, since 2×525505205122142² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 525505205122142.

It is a congruent number.

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, 469595534 + ... + 470713262.

It is an arithmetic number, because the mean of its divisors is an integer number (28331534871510).

Almost surely, 2^{525505205122142} is an apocalyptic number.

525505205122142 is a deficient number, since it is larger than the sum of its proper divisors (381103910766178).

525505205122142 is a wasteful number, since it uses less digits than its factorization.

525505205122142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331796.

The product of its (nonzero) digits is 400000, while the sum is 41.

Adding to 525505205122142 its reverse (241221502505525), we get a palindrome (766726707627667).

The spelling of 525505205122142 in words is "five hundred twenty-five trillion, five hundred five billion, two hundred five million, one hundred twenty-two thousand, one hundred forty-two".