56211630 has 16 divisors (see below), whose sum is σ = 134907984. Its totient is φ = 14989760.

The previous prime is 56211619. The next prime is 56211637. The reversal of 56211630 is 3611265.

It is a self number, because there is not a number n which added to its sum of digits gives 56211630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56211637) 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, 936831 + ... + 936890.

It is an arithmetic number, because the mean of its divisors is an integer number (8431749).

Almost surely, 2^56211630 is an apocalyptic number.

56211630 is an abundant number, since it is smaller than the sum of its proper divisors (78696354).

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

56211630 is a wasteful number, since it uses less digits than its factorization.

56211630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873731.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 56211630 is about 7497.4415636269. The cubic root of 56211630 is about 383.0675755120.

Adding to 56211630 its reverse (3611265), we get a palindrome (59822895).

The spelling of 56211630 in words is "fifty-six million, two hundred eleven thousand, six hundred thirty".