51124527 has 24 divisors (see below), whose sum is σ = 77859600. Its totient is φ = 33514560.

The previous prime is 51124519. The next prime is 51124531. The reversal of 51124527 is 72542115.

It is not a de Polignac number, because 51124527 - 2³ = 51124519 is a prime.

It is a super-2 number, since 2×51124527² = 5227434521947458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 51124527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51124517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13099 + ... + 16547.

It is an arithmetic number, because the mean of its divisors is an integer number (3244150).

Almost surely, 2^51124527 is an apocalyptic number.

51124527 is a deficient number, since it is larger than the sum of its proper divisors (26735073).

51124527 is an equidigital number, since it uses as much as digits as its factorization.

51124527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525 (or 3513 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 51124527 is about 7150.1417468467. The cubic root of 51124527 is about 371.1445614255.

The spelling of 51124527 in words is "fifty-one million, one hundred twenty-four thousand, five hundred twenty-seven".