51623898 has 16 divisors (see below), whose sum is σ = 103416096. Its totient is φ = 17179920.

The previous prime is 51623867. The next prime is 51623899. The reversal of 51623898 is 89832615.

It is not an unprimeable number, because it can be changed into a prime (51623899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2833 + ... + 10548.

It is an arithmetic number, because the mean of its divisors is an integer number (6463506).

Almost surely, 2^51623898 is an apocalyptic number.

51623898 is an abundant number, since it is smaller than the sum of its proper divisors (51792198).

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

51623898 is a wasteful number, since it uses less digits than its factorization.

51623898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029.

The product of its digits is 103680, while the sum is 42.

The square root of 51623898 is about 7184.9772442228. The cubic root of 51623898 is about 372.3490624612.

The spelling of 51623898 in words is "fifty-one million, six hundred twenty-three thousand, eight hundred ninety-eight".