56155710 has 64 divisors (see below), whose sum is σ = 146583360. Its totient is φ = 13685760.

The previous prime is 56155699. The next prime is 56155711. The reversal of 56155710 is 1755165.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56155711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41850 + ... + 43170.

It is an arithmetic number, because the mean of its divisors is an integer number (2290365).

Almost surely, 2^56155710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56155710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73291680).

56155710 is an abundant number, since it is smaller than the sum of its proper divisors (90427650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56155710 is a wasteful number, since it uses less digits than its factorization.

56155710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453.

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 56155710 is about 7493.7113635368. The cubic root of 56155710 is about 382.9405066351.

It can be divided in two parts, 56155 and 710, that added together give a palindrome (56865).

The spelling of 56155710 in words is "fifty-six million, one hundred fifty-five thousand, seven hundred ten".