51089260 has 24 divisors (see below), whose sum is σ = 107515296. Its totient is φ = 20392320.

The previous prime is 51089249. The next prime is 51089261. The reversal of 51089260 is 6298015.

It is a super-2 number, since 2×51089260² = 5220224974695200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51089261) 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, 7969 + ... + 12871.

It is an arithmetic number, because the mean of its divisors is an integer number (4479804).

It is a vampire number, since it can be written as 5210 ⋅ 9806 (with its own digits).

Almost surely, 2^51089260 is an apocalyptic number.

It is an amenable number.

51089260 is an abundant number, since it is smaller than the sum of its proper divisors (56426036).

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

51089260 is a wasteful number, since it uses less digits than its factorization.

51089260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433 (or 5431 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 51089260 is about 7147.6751465074. The cubic root of 51089260 is about 371.0592001393.

The spelling of 51089260 in words is "fifty-one million, eighty-nine thousand, two hundred sixty".