55130051 has 2 divisors, whose sum is σ = 55130052. Its totient is φ = 55130050.

The previous prime is 55130003. The next prime is 55130063. The reversal of 55130051 is 15003155.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55130051 - 2¹⁸ = 54867907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55130651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27565025 + 27565026.

It is an arithmetic number, because the mean of its divisors is an integer number (27565026).

Almost surely, 2^55130051 is an apocalyptic number.

55130051 is a deficient number, since it is larger than the sum of its proper divisors (1).

55130051 is an equidigital number, since it uses as much as digits as its factorization.

55130051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 55130051 is about 7424.9613467007. The cubic root of 55130051 is about 380.5947542347.

The spelling of 55130051 in words is "fifty-five million, one hundred thirty thousand, fifty-one".