55040756 has 12 divisors (see below), whose sum is σ = 98924868. Its totient is φ = 26776512.

The previous prime is 55040743. The next prime is 55040767. The reversal of 55040756 is 65704055.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25664356 + 29376400 = 5066^2 + 5420^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185801 + ... + 186096.

It is an arithmetic number, because the mean of its divisors is an integer number (8243739).

Almost surely, 2^55040756 is an apocalyptic number.

It is an amenable number.

55040756 is a deficient number, since it is larger than the sum of its proper divisors (43884112).

55040756 is a wasteful number, since it uses less digits than its factorization.

55040756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371938 (or 371936 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 55040756 is about 7418.9457472069. The cubic root of 55040756 is about 380.3891581137.

The spelling of 55040756 in words is "fifty-five million, forty thousand, seven hundred fifty-six".