51124158 has 48 divisors (see below), whose sum is σ = 117730080. Its totient is φ = 16003008.

The previous prime is 51124127. The next prime is 51124159. The reversal of 51124158 is 85142115.

It is a super-2 number, since 2×51124158² = 5227359062417928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51124159) 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, 17991 + ... + 20637.

It is an arithmetic number, because the mean of its divisors is an integer number (2452710).

Almost surely, 2^51124158 is an apocalyptic number.

51124158 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51124158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58865040).

51124158 is an abundant number, since it is smaller than the sum of its proper divisors (66605922).

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

51124158 is a wasteful number, since it uses less digits than its factorization.

51124158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721 (or 2718 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 51124158 is about 7150.1159431159. The cubic root of 51124158 is about 371.1436684903.

The spelling of 51124158 in words is "fifty-one million, one hundred twenty-four thousand, one hundred fifty-eight".