15553425402 has 12 divisors (see below), whose sum is σ = 33699088410. Its totient is φ = 5184475128.

The previous prime is 15553425379. The next prime is 15553425427. The reversal of 15553425402 is 20452435551.

15553425402 is a `hidden beast` number, since 15 + 553 + 42 + 54 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14991308721 + 562116681 = 122439^2 + 23709^2 .

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 5 ways as a sum of consecutive naturals, for example, 432039577 + ... + 432039612.

Almost surely, 2^15553425402 is an apocalyptic number.

15553425402 is an abundant number, since it is smaller than the sum of its proper divisors (18145663008).

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

15553425402 is a wasteful number, since it uses less digits than its factorization.

15553425402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864079197 (or 864079194 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 15553425402 in words is "fifteen billion, five hundred fifty-three million, four hundred twenty-five thousand, four hundred two".