51121576 has 16 divisors (see below), whose sum is σ = 104567040. Its totient is φ = 23237040.

The previous prime is 51121561. The next prime is 51121579. The reversal of 51121576 is 67512115.

It is a super-2 number, since 2×51121576² = 5226831065447552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51121579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290376 + ... + 290551.

It is an arithmetic number, because the mean of its divisors is an integer number (6535440).

Almost surely, 2^51121576 is an apocalyptic number.

It is an amenable number.

51121576 is an abundant number, since it is smaller than the sum of its proper divisors (53445464).

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

51121576 is a wasteful number, since it uses less digits than its factorization.

51121576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580944 (or 580940 counting only the distinct ones).

The product of its digits is 2100, while the sum is 28.

The square root of 51121576 is about 7149.9353843234. The cubic root of 51121576 is about 371.1374202434.

The spelling of 51121576 in words is "fifty-one million, one hundred twenty-one thousand, five hundred seventy-six".