55402951 has 2 divisors, whose sum is σ = 55402952. Its totient is φ = 55402950.

The previous prime is 55402943. The next prime is 55402981. The reversal of 55402951 is 15920455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55402951 - 2³ = 55402943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55402981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27701475 + 27701476.

It is an arithmetic number, because the mean of its divisors is an integer number (27701476).

Almost surely, 2^55402951 is an apocalyptic number.

55402951 is a deficient number, since it is larger than the sum of its proper divisors (1).

55402951 is an equidigital number, since it uses as much as digits as its factorization.

55402951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 55402951 is about 7443.3158605557. The cubic root of 55402951 is about 381.2217165796.

The spelling of 55402951 in words is "fifty-five million, four hundred two thousand, nine hundred fifty-one".