55292507 has 2 divisors, whose sum is σ = 55292508. Its totient is φ = 55292506.

The previous prime is 55292491. The next prime is 55292513. The reversal of 55292507 is 70529255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55292507 - 2⁴ = 55292491 is a prime.

It is a super-2 number, since 2×55292507² = 6114522660690098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55292707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27646253 + 27646254.

It is an arithmetic number, because the mean of its divisors is an integer number (27646254).

Almost surely, 2^55292507 is an apocalyptic number.

55292507 is a deficient number, since it is larger than the sum of its proper divisors (1).

55292507 is an equidigital number, since it uses as much as digits as its factorization.

55292507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55292507 is about 7435.8931541544. The cubic root of 55292507 is about 380.9682303245.

The spelling of 55292507 in words is "fifty-five million, two hundred ninety-two thousand, five hundred seven".