56432511 has 16 divisors (see below), whose sum is σ = 85864800. Its totient is φ = 36604224.

The previous prime is 56432491. The next prime is 56432531. The reversal of 56432511 is 11523465.

56432511 is a `hidden beast` number, since 5 + 643 + 2 + 5 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (56432491) and next prime (56432531).

It is not a de Polignac number, because 56432511 - 2¹⁴ = 56416127 is a prime.

It is a super-3 number, since 3×56432511³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56432531) 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, 27246 + ... + 29243.

It is an arithmetic number, because the mean of its divisors is an integer number (5366550).

Almost surely, 2^56432511 is an apocalyptic number.

56432511 is a deficient number, since it is larger than the sum of its proper divisors (29432289).

56432511 is a wasteful number, since it uses less digits than its factorization.

56432511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56535 (or 56529 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 56432511 is about 7512.1575462712. The cubic root of 56432511 is about 383.5686685164.

Adding to 56432511 its reverse (11523465), we get a palindrome (67955976).

The spelling of 56432511 in words is "fifty-six million, four hundred thirty-two thousand, five hundred eleven".