51113670 has 32 divisors (see below), whose sum is σ = 125528832. Its totient is φ = 13312992.

The previous prime is 51113663. The next prime is 51113693. The reversal of 51113670 is 7631115.

It is a super-2 number, since 2×51113670² = 5225214521737800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51113670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18522 + ... + 21101.

It is an arithmetic number, because the mean of its divisors is an integer number (3922776).

Almost surely, 2^51113670 is an apocalyptic number.

51113670 is an abundant number, since it is smaller than the sum of its proper divisors (74415162).

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

51113670 is a wasteful number, since it uses less digits than its factorization.

51113670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39676.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 51113670 is about 7149.3824908170. The cubic root of 51113670 is about 371.1182870062.

Adding to 51113670 its reverse (7631115), we get a palindrome (58744785).

The spelling of 51113670 in words is "fifty-one million, one hundred thirteen thousand, six hundred seventy".