55507051 has 4 divisors (see below), whose sum is σ = 56016400. Its totient is φ = 54997704.

The previous prime is 55507031. The next prime is 55507063. The reversal of 55507051 is 15070555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55507051 - 2¹⁷ = 55375979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55507031) 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, 254511 + ... + 254728.

It is an arithmetic number, because the mean of its divisors is an integer number (14004100).

Almost surely, 2^55507051 is an apocalyptic number.

55507051 is a deficient number, since it is larger than the sum of its proper divisors (509349).

55507051 is a wasteful number, since it uses less digits than its factorization.

55507051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509348.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 55507051 is about 7450.3054299807. The cubic root of 55507051 is about 381.4603341397.

The spelling of 55507051 in words is "fifty-five million, five hundred seven thousand, fifty-one".