56755407 has 8 divisors (see below), whose sum is σ = 78283440. Its totient is φ = 36532160.

The previous prime is 56755381. The next prime is 56755409. The reversal of 56755407 is 70455765.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56755407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56755409) 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, 326094 + ... + 326267.

It is an arithmetic number, because the mean of its divisors is an integer number (9785430).

Almost surely, 2^56755407 is an apocalyptic number.

56755407 is a deficient number, since it is larger than the sum of its proper divisors (21528033).

56755407 is a wasteful number, since it uses less digits than its factorization.

56755407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652393.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 56755407 is about 7533.6184533065. The cubic root of 56755407 is about 384.2988464110.

The spelling of 56755407 in words is "fifty-six million, seven hundred fifty-five thousand, four hundred seven".