51010401 has 16 divisors (see below), whose sum is σ = 73394496. Its totient is φ = 31327296.

The previous prime is 51010373. The next prime is 51010411. The reversal of 51010401 is 10401015.

It is a happy number.

It is not a de Polignac number, because 51010401 - 2¹⁴ = 50994017 is a prime.

It is a super-2 number, since 2×51010401² = 5204122020361602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51010411) 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, 24466 + ... + 26468.

It is an arithmetic number, because the mean of its divisors is an integer number (4587156).

Almost surely, 2^51010401 is an apocalyptic number.

It is an amenable number.

51010401 is a deficient number, since it is larger than the sum of its proper divisors (22384095).

51010401 is a wasteful number, since it uses less digits than its factorization.

51010401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 51010401 is about 7142.1566070760. The cubic root of 51010401 is about 370.8681852640.

Adding to 51010401 its reverse (10401015), we get a palindrome (61411416).

The spelling of 51010401 in words is "fifty-one million, ten thousand, four hundred one".