51525544 has 32 divisors (see below), whose sum is σ = 111496320. Its totient is φ = 21865536.

The previous prime is 51525443. The next prime is 51525557. The reversal of 51525544 is 44552515.

51525544 is a modest number, since divided by 5544 gives 5152 as remainder.

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, 1302 + ... + 10234.

It is an arithmetic number, because the mean of its divisors is an integer number (3484260).

Almost surely, 2^51525544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51525544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55748160).

51525544 is an abundant number, since it is smaller than the sum of its proper divisors (59970776).

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

51525544 is a wasteful number, since it uses less digits than its factorization.

51525544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049 (or 9045 counting only the distinct ones).

The product of its digits is 20000, while the sum is 31.

The square root of 51525544 is about 7178.1295613830. The cubic root of 51525544 is about 372.1124452922.

The spelling of 51525544 in words is "fifty-one million, five hundred twenty-five thousand, five hundred forty-four".