56151431 has 8 divisors (see below), whose sum is σ = 64220544. Its totient is φ = 48094200.

The previous prime is 56151419. The next prime is 56151439. The reversal of 56151431 is 13415165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56151431 - 2¹⁴ = 56135047 is a prime.

It is a super-2 number, since 2×56151431² = 6305966406695522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56151431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56151439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12656 + ... + 16506.

It is an arithmetic number, because the mean of its divisors is an integer number (8027568).

Almost surely, 2^56151431 is an apocalyptic number.

56151431 is a deficient number, since it is larger than the sum of its proper divisors (8069113).

56151431 is a wasteful number, since it uses less digits than its factorization.

56151431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941.

The product of its digits is 1800, while the sum is 26.

The square root of 56151431 is about 7493.4258520386. The cubic root of 56151431 is about 382.9307798471.

Adding to 56151431 its reverse (13415165), we get a palindrome (69566596).

The spelling of 56151431 in words is "fifty-six million, one hundred fifty-one thousand, four hundred thirty-one".