55487051 has 2 divisors, whose sum is σ = 55487052. Its totient is φ = 55487050.

The previous prime is 55486999. The next prime is 55487059. The reversal of 55487051 is 15078455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55487051 - 2⁶ = 55486987 is a prime.

It is a super-3 number, since 3×55487051³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55487059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27743525 + 27743526.

It is an arithmetic number, because the mean of its divisors is an integer number (27743526).

Almost surely, 2^55487051 is an apocalyptic number.

55487051 is a deficient number, since it is larger than the sum of its proper divisors (1).

55487051 is an equidigital number, since it uses as much as digits as its factorization.

55487051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 55487051 is about 7448.9630822014. The cubic root of 55487051 is about 381.4145133954.

The spelling of 55487051 in words is "fifty-five million, four hundred eighty-seven thousand, fifty-one".