55707893 has 2 divisors, whose sum is σ = 55707894. Its totient is φ = 55707892.

The previous prime is 55707809. The next prime is 55707901. The reversal of 55707893 is 39870755.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54272689 + 1435204 = 7367^2 + 1198^2 .

It is a cyclic number.

It is not a de Polignac number, because 55707893 - 2¹⁴ = 55691509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55707803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27853946 + 27853947.

It is an arithmetic number, because the mean of its divisors is an integer number (27853947).

Almost surely, 2^55707893 is an apocalyptic number.

It is an amenable number.

55707893 is a deficient number, since it is larger than the sum of its proper divisors (1).

55707893 is an equidigital number, since it uses as much as digits as its factorization.

55707893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 55707893 is about 7463.7720356399. The cubic root of 55707893 is about 381.9198615734.

The spelling of 55707893 in words is "fifty-five million, seven hundred seven thousand, eight hundred ninety-three".