51167252 has 24 divisors (see below), whose sum is σ = 93180360. Its totient is φ = 24554880.

The previous prime is 51167243. The next prime is 51167261. The reversal of 51167252 is 25276115.

It is an interprime number because it is at equal distance from previous prime (51167243) and next prime (51167261).

It can be written as a sum of positive squares in 4 ways, for example, as 5550736 + 45616516 = 2356^2 + 6754^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 19778 + ... + 22214.

It is an arithmetic number, because the mean of its divisors is an integer number (3882515).

Almost surely, 2^51167252 is an apocalyptic number.

It is an amenable number.

51167252 is a deficient number, since it is larger than the sum of its proper divisors (42013108).

51167252 is a wasteful number, since it uses less digits than its factorization.

51167252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651 (or 2649 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 51167252 is about 7153.1288259055. The cubic root of 51167252 is about 371.2479217046.

The spelling of 51167252 in words is "fifty-one million, one hundred sixty-seven thousand, two hundred fifty-two".