55402764 has 24 divisors (see below), whose sum is σ = 132768048. Its totient is φ = 17968320.

The previous prime is 55402757. The next prime is 55402777. The reversal of 55402764 is 46720455.

55402764 = T₁₇₁₂ + T₁₇₁₃ + ... + T₁₇₄₈.

It is a super-3 number, since 3×55402764³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61947 + ... + 62834.

It is an arithmetic number, because the mean of its divisors is an integer number (5532002).

Almost surely, 2^55402764 is an apocalyptic number.

It is an amenable number.

55402764 is an abundant number, since it is smaller than the sum of its proper divisors (77365284).

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

55402764 is a wasteful number, since it uses less digits than its factorization.

55402764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124825 (or 124823 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 55402764 is about 7443.3032989393. The cubic root of 55402764 is about 381.2212876702.

The spelling of 55402764 in words is "fifty-five million, four hundred two thousand, seven hundred sixty-four".