55014991 has 2 divisors, whose sum is σ = 55014992. Its totient is φ = 55014990.

The previous prime is 55014983. The next prime is 55015019. The reversal of 55014991 is 19941055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55014991 - 2³ = 55014983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55014961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27507495 + 27507496.

It is an arithmetic number, because the mean of its divisors is an integer number (27507496).

Almost surely, 2^55014991 is an apocalyptic number.

55014991 is a deficient number, since it is larger than the sum of its proper divisors (1).

55014991 is an equidigital number, since it uses as much as digits as its factorization.

55014991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 55014991 is about 7417.2091112493. The cubic root of 55014991 is about 380.3297944892.

The spelling of 55014991 in words is "fifty-five million, fourteen thousand, nine hundred ninety-one".