55342757 has 2 divisors, whose sum is σ = 55342758. Its totient is φ = 55342756.

The previous prime is 55342753. The next prime is 55342783. The reversal of 55342757 is 75724355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45819361 + 9523396 = 6769^2 + 3086^2 .

It is a cyclic number.

It is not a de Polignac number, because 55342757 - 2² = 55342753 is a prime.

It is a super-2 number, since 2×55342757² = 6125641504722098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55342757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55342751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27671378 + 27671379.

It is an arithmetic number, because the mean of its divisors is an integer number (27671379).

Almost surely, 2^55342757 is an apocalyptic number.

It is an amenable number.

55342757 is a deficient number, since it is larger than the sum of its proper divisors (1).

55342757 is an equidigital number, since it uses as much as digits as its factorization.

55342757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147000, while the sum is 38.

The square root of 55342757 is about 7439.2712680746. The cubic root of 55342757 is about 381.0836037465.

The spelling of 55342757 in words is "fifty-five million, three hundred forty-two thousand, seven hundred fifty-seven".