51250023 has 32 divisors (see below), whose sum is σ = 84775680. Its totient is φ = 30330720.

The previous prime is 51250013. The next prime is 51250057. The reversal of 51250023 is 32005215.

It is a happy number.

It is not a de Polignac number, because 51250023 - 2⁴ = 51250007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51249978 and 51250005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51250013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10765 + ... + 14777.

It is an arithmetic number, because the mean of its divisors is an integer number (2649240).

Almost surely, 2^51250023 is an apocalyptic number.

51250023 is a deficient number, since it is larger than the sum of its proper divisors (33525657).

51250023 is a wasteful number, since it uses less digits than its factorization.

51250023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076 (or 4070 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 51250023 is about 7158.9121380277. The cubic root of 51250023 is about 371.4479976385.

Adding to 51250023 its reverse (32005215), we get a palindrome (83255238).

The spelling of 51250023 in words is "fifty-one million, two hundred fifty thousand, twenty-three".