51452331 has 16 divisors (see below), whose sum is σ = 78701568. Its totient is φ = 29289600.

The previous prime is 51452309. The next prime is 51452333. The reversal of 51452331 is 13325415.

It is not a de Polignac number, because 51452331 - 2⁶ = 51452267 is a prime.

It is a super-2 number, since 2×51452331² = 5294684730667122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51452333) 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, 1171 + ... + 10211.

It is an arithmetic number, because the mean of its divisors is an integer number (4918848).

Almost surely, 2^51452331 is an apocalyptic number.

51452331 is a deficient number, since it is larger than the sum of its proper divisors (27249237).

51452331 is a wasteful number, since it uses less digits than its factorization.

51452331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9322.

The product of its digits is 1800, while the sum is 24.

The square root of 51452331 is about 7173.0280216935. The cubic root of 51452331 is about 371.9361160387.

Adding to 51452331 its reverse (13325415), we get a palindrome (64777746).

The spelling of 51452331 in words is "fifty-one million, four hundred fifty-two thousand, three hundred thirty-one".