55700977 has 8 divisors (see below), whose sum is σ = 56354760. Its totient is φ = 55050240.

The previous prime is 55700941. The next prime is 55700987. The reversal of 55700977 is 77900755.

It can be written as a sum of positive squares in 4 ways, for example, as 3297856 + 52403121 = 1816^2 + 7239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55700977 - 2¹⁹ = 55176689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55700987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72049 + ... + 72817.

It is an arithmetic number, because the mean of its divisors is an integer number (7044345).

Almost surely, 2^55700977 is an apocalyptic number.

It is an amenable number.

55700977 is a deficient number, since it is larger than the sum of its proper divisors (653783).

55700977 is a wasteful number, since it uses less digits than its factorization.

55700977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523.

The product of its (nonzero) digits is 77175, while the sum is 40.

The square root of 55700977 is about 7463.3087166484. The cubic root of 55700977 is about 381.9040561107.

The spelling of 55700977 in words is "fifty-five million, seven hundred thousand, nine hundred seventy-seven".