51103164 has 24 divisors (see below), whose sum is σ = 136275328. Its totient is φ = 14600880.

The previous prime is 51103153. The next prime is 51103181. The reversal of 51103164 is 46130115.

It is a super-2 number, since 2×51103164² = 5223066741621792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 51103164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304102 + ... + 304269.

Almost surely, 2^51103164 is an apocalyptic number.

It is an amenable number.

51103164 is an abundant number, since it is smaller than the sum of its proper divisors (85172164).

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

51103164 is a wasteful number, since it uses less digits than its factorization.

51103164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608385 (or 608383 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 51103164 is about 7148.6477042865. The cubic root of 51103164 is about 371.0928584800.

Adding to 51103164 its reverse (46130115), we get a palindrome (97233279).

The spelling of 51103164 in words is "fifty-one million, one hundred three thousand, one hundred sixty-four".