53125025402 has 16 divisors (see below), whose sum is σ = 80884363560. Its totient is φ = 26164518912.

The previous prime is 53125025351. The next prime is 53125025431. The reversal of 53125025402 is 20452052135.

It can be written as a sum of positive squares in 4 ways, for example, as 45514382281 + 7610643121 = 213341^2 + 87239^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124313 + ... + 348860.

Almost surely, 2^53125025402 is an apocalyptic number.

53125025402 is a deficient number, since it is larger than the sum of its proper divisors (27759338158).

53125025402 is a wasteful number, since it uses less digits than its factorization.

53125025402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474017.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 53125025402 its reverse (20452052135), we get a palindrome (73577077537).

The spelling of 53125025402 in words is "fifty-three billion, one hundred twenty-five million, twenty-five thousand, four hundred two".