51124155 has 16 divisors (see below), whose sum is σ = 86104320. Its totient is φ = 25831008.

The previous prime is 51124127. The next prime is 51124159. The reversal of 51124155 is 55142115.

It is not a de Polignac number, because 51124155 - 2⁵ = 51124123 is a prime.

It is a super-2 number, since 2×51124155² = 5227358448928050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 89407 + ... + 89976.

It is an arithmetic number, because the mean of its divisors is an integer number (5381520).

Almost surely, 2^51124155 is an apocalyptic number.

51124155 is a deficient number, since it is larger than the sum of its proper divisors (34980165).

51124155 is a wasteful number, since it uses less digits than its factorization.

51124155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179410.

The product of its digits is 1000, while the sum is 24.

The square root of 51124155 is about 7150.1157333291. The cubic root of 51124155 is about 371.1436612306.

The spelling of 51124155 in words is "fifty-one million, one hundred twenty-four thousand, one hundred fifty-five".