55470551 has 2 divisors, whose sum is σ = 55470552. Its totient is φ = 55470550.

The previous prime is 55470523. The next prime is 55470577. The reversal of 55470551 is 15507455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55470551 - 2⁶ = 55470487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55470521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27735275 + 27735276.

It is an arithmetic number, because the mean of its divisors is an integer number (27735276).

Almost surely, 2^55470551 is an apocalyptic number.

55470551 is a deficient number, since it is larger than the sum of its proper divisors (1).

55470551 is an equidigital number, since it uses as much as digits as its factorization.

55470551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 55470551 is about 7447.8554631518. The cubic root of 55470551 is about 381.3767029918.

The spelling of 55470551 in words is "fifty-five million, four hundred seventy thousand, five hundred fifty-one".