51523353 has 18 divisors (see below), whose sum is σ = 86573994. Its totient is φ = 29441664.

The previous prime is 51523349. The next prime is 51523357. The reversal of 51523353 is 35332515.

It is an interprime number because it is at equal distance from previous prime (51523349) and next prime (51523357).

It can be written as a sum of positive squares in only one way, i.e., 32626944 + 18896409 = 5712^2 + 4347^2 .

It is not a de Polignac number, because 51523353 - 2² = 51523349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51523357) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 57976 + ... + 58857.

Almost surely, 2^51523353 is an apocalyptic number.

It is an amenable number.

51523353 is a deficient number, since it is larger than the sum of its proper divisors (35050641).

51523353 is a wasteful number, since it uses less digits than its factorization.

51523353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116853 (or 116843 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 51523353 is about 7177.9769434013. The cubic root of 51523353 is about 372.1071708214.

Adding to 51523353 its reverse (35332515), we get a palindrome (86855868).

The spelling of 51523353 in words is "fifty-one million, five hundred twenty-three thousand, three hundred fifty-three".