55470757 has 2 divisors, whose sum is σ = 55470758. Its totient is φ = 55470756.

The previous prime is 55470743. The next prime is 55470781. The reversal of 55470757 is 75707455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47803396 + 7667361 = 6914^2 + 2769^2 .

It is a cyclic number.

It is not a de Polignac number, because 55470757 - 2⁷ = 55470629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55470257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27735378 + 27735379.

It is an arithmetic number, because the mean of its divisors is an integer number (27735379).

Almost surely, 2^55470757 is an apocalyptic number.

It is an amenable number.

55470757 is a deficient number, since it is larger than the sum of its proper divisors (1).

55470757 is an equidigital number, since it uses as much as digits as its factorization.

55470757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 171500, while the sum is 40.

The square root of 55470757 is about 7447.8692926232. The cubic root of 55470757 is about 381.3771750951.

The spelling of 55470757 in words is "fifty-five million, four hundred seventy thousand, seven hundred fifty-seven".