56403132 has 12 divisors (see below), whose sum is σ = 131607336. Its totient is φ = 18801040.

The previous prime is 56403131. The next prime is 56403157. The reversal of 56403132 is 23130465.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56403131) 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, 2350119 + ... + 2350142.

It is an arithmetic number, because the mean of its divisors is an integer number (10967278).

Almost surely, 2^56403132 is an apocalyptic number.

It is an amenable number.

56403132 is an abundant number, since it is smaller than the sum of its proper divisors (75204204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56403132 is a wasteful number, since it uses less digits than its factorization.

56403132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700268 (or 4700266 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 56403132 is about 7510.2018614682. The cubic root of 56403132 is about 383.5020944807.

Adding to 56403132 its reverse (23130465), we get a palindrome (79533597).

The spelling of 56403132 in words is "fifty-six million, four hundred three thousand, one hundred thirty-two".