55098431 has 2 divisors, whose sum is σ = 55098432. Its totient is φ = 55098430.

The previous prime is 55098427. The next prime is 55098443. The reversal of 55098431 is 13489055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55098431 - 2² = 55098427 is a prime.

It is a super-2 number, since 2×55098431² = 6071674197323522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55098391 and 55098400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55097431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27549215 + 27549216.

It is an arithmetic number, because the mean of its divisors is an integer number (27549216).

Almost surely, 2^55098431 is an apocalyptic number.

55098431 is a deficient number, since it is larger than the sum of its proper divisors (1).

55098431 is an equidigital number, since it uses as much as digits as its factorization.

55098431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 55098431 is about 7422.8317372819. The cubic root of 55098431 is about 380.5219765787.

The spelling of 55098431 in words is "fifty-five million, ninety-eight thousand, four hundred thirty-one".