56351131 has 4 divisors (see below), whose sum is σ = 59317000. Its totient is φ = 53385264.

The previous prime is 56351123. The next prime is 56351143. The reversal of 56351131 is 13115365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13115365 = 5 ⋅2623073.

It is a cyclic number.

It is not a de Polignac number, because 56351131 - 2³ = 56351123 is a prime.

It is a super-2 number, since 2×56351131² = 6350899929958322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56351096 and 56351105.

It is not an unprimeable number, because it can be changed into a prime (56351171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1482906 + ... + 1482943.

It is an arithmetic number, because the mean of its divisors is an integer number (14829250).

Almost surely, 2^56351131 is an apocalyptic number.

56351131 is a deficient number, since it is larger than the sum of its proper divisors (2965869).

56351131 is a wasteful number, since it uses less digits than its factorization.

56351131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965868.

The product of its digits is 1350, while the sum is 25.

The square root of 56351131 is about 7506.7390390235. The cubic root of 56351131 is about 383.3842013571.

Adding to 56351131 its reverse (13115365), we get a palindrome (69466496).

The spelling of 56351131 in words is "fifty-six million, three hundred fifty-one thousand, one hundred thirty-one".