55402516 has 12 divisors (see below), whose sum is σ = 104412532. Its totient is φ = 25570368.

The previous prime is 55402513. The next prime is 55402531. The reversal of 55402516 is 61520455.

It can be written as a sum of positive squares in 2 ways, for example, as 33593616 + 21808900 = 5796^2 + 4670^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55402511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532665 + ... + 532768.

Almost surely, 2^55402516 is an apocalyptic number.

It is an amenable number.

55402516 is a deficient number, since it is larger than the sum of its proper divisors (49010016).

55402516 is a wasteful number, since it uses less digits than its factorization.

55402516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065450 (or 1065448 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 55402516 is about 7443.2866396505. The cubic root of 55402516 is about 381.2207188477.

The spelling of 55402516 in words is "fifty-five million, four hundred two thousand, five hundred sixteen".