56436151 has 4 divisors (see below), whose sum is σ = 58256704. Its totient is φ = 54615600.

The previous prime is 56436139. The next prime is 56436161. The reversal of 56436151 is 15163465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15163465 = 5 ⋅3032693.

It is a cyclic number.

It is not a de Polignac number, because 56436151 - 2⁵ = 56436119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1820521 = 56436151 / (5 + 6 + 4 + 3 + 6 + 1 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56436161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910230 + ... + 910291.

It is an arithmetic number, because the mean of its divisors is an integer number (14564176).

Almost surely, 2^56436151 is an apocalyptic number.

56436151 is a deficient number, since it is larger than the sum of its proper divisors (1820553).

56436151 is a wasteful number, since it uses less digits than its factorization.

56436151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820552.

The product of its digits is 10800, while the sum is 31.

The square root of 56436151 is about 7512.3998163037. The cubic root of 56436151 is about 383.5769152990.

The spelling of 56436151 in words is "fifty-six million, four hundred thirty-six thousand, one hundred fifty-one".