51010038 has 24 divisors (see below), whose sum is σ = 111540000. Its totient is φ = 16846704.

The previous prime is 51010033. The next prime is 51010051. The reversal of 51010038 is 83001015.

It is a happy number.

It is a super-2 number, since 2×51010038² = 5204047953522888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 51010038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11038 + ... + 14961.

It is an arithmetic number, because the mean of its divisors is an integer number (4647500).

Almost surely, 2^51010038 is an apocalyptic number.

51010038 is an abundant number, since it is smaller than the sum of its proper divisors (60529962).

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

51010038 is a wasteful number, since it uses less digits than its factorization.

51010038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26116 (or 26113 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 51010038 is about 7142.1311945385. The cubic root of 51010038 is about 370.8673055384.

The spelling of 51010038 in words is "fifty-one million, ten thousand, thirty-eight".