55192507 has 2 divisors, whose sum is σ = 55192508. Its totient is φ = 55192506.

The previous prime is 55192499. The next prime is 55192517. The reversal of 55192507 is 70529155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55192507 - 2³ = 55192499 is a prime.

It is not a weakly prime, because it can be changed into another prime (55192517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27596253 + 27596254.

It is an arithmetic number, because the mean of its divisors is an integer number (27596254).

Almost surely, 2^55192507 is an apocalyptic number.

55192507 is a deficient number, since it is larger than the sum of its proper divisors (1).

55192507 is an equidigital number, since it uses as much as digits as its factorization.

55192507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 55192507 is about 7429.1659693400. The cubic root of 55192507 is about 380.7384233395.

The spelling of 55192507 in words is "fifty-five million, one hundred ninety-two thousand, five hundred seven".