56770261 has 8 divisors (see below), whose sum is σ = 57953880. Its totient is φ = 55590912.

The previous prime is 56770253. The next prime is 56770267. The reversal of 56770261 is 16207765.

It can be written as a sum of positive squares in 4 ways, for example, as 6275025 + 50495236 = 2505^2 + 7106^2 .

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 56770261 - 2³ = 56770253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56770267) 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, 48661 + ... + 49813.

It is an arithmetic number, because the mean of its divisors is an integer number (7244235).

Almost surely, 2^56770261 is an apocalyptic number.

It is an amenable number.

56770261 is a deficient number, since it is larger than the sum of its proper divisors (1183619).

56770261 is a wasteful number, since it uses less digits than its factorization.

56770261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 56770261 is about 7534.6042364546. The cubic root of 56770261 is about 384.3323696613.

The spelling of 56770261 in words is "fifty-six million, seven hundred seventy thousand, two hundred sixty-one".