56140545 has 32 divisors (see below), whose sum is σ = 95862528. Its totient is φ = 27957248.

The previous prime is 56140543. The next prime is 56140561. The reversal of 56140545 is 54504165.

It is not a de Polignac number, because 56140545 - 2¹ = 56140543 is a prime.

It is a super-3 number, since 3×56140545³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (56140541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34132 + ... + 35738.

It is an arithmetic number, because the mean of its divisors is an integer number (2995704).

Almost surely, 2^56140545 is an apocalyptic number.

It is an amenable number.

56140545 is a deficient number, since it is larger than the sum of its proper divisors (39721983).

56140545 is a wasteful number, since it uses less digits than its factorization.

56140545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 56140545 is about 7492.6994467949. The cubic root of 56140545 is about 382.9060321615.

The spelling of 56140545 in words is "fifty-six million, one hundred forty thousand, five hundred forty-five".