51010125 has 16 divisors (see below), whose sum is σ = 84881472. Its totient is φ = 27205200.

The previous prime is 51010103. The next prime is 51010129. The reversal of 51010125 is 52101015.

It is not a de Polignac number, because 51010125 - 2⁶ = 51010061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010129) 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, 67639 + ... + 68388.

It is an arithmetic number, because the mean of its divisors is an integer number (5305092).

Almost surely, 2^51010125 is an apocalyptic number.

It is an amenable number.

51010125 is a deficient number, since it is larger than the sum of its proper divisors (33871347).

51010125 is a wasteful number, since it uses less digits than its factorization.

51010125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136045 (or 136035 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 51010125 is about 7142.1372851549. The cubic root of 51010125 is about 370.8675163821.

The spelling of 51010125 in words is "fifty-one million, ten thousand, one hundred twenty-five".