56421153 has 12 divisors (see below), whose sum is σ = 84307860. Its totient is φ = 36316896.

The previous prime is 56421151. The next prime is 56421161. The reversal of 56421153 is 35112465.

56421153 is a `hidden beast` number, since 5 + 642 + 1 + 15 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20277009 + 36144144 = 4503^2 + 6012^2 .

It is not a de Polignac number, because 56421153 - 2¹ = 56421151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56421151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107826 + ... + 108347.

It is an arithmetic number, because the mean of its divisors is an integer number (7025655).

Almost surely, 2^56421153 is an apocalyptic number.

It is an amenable number.

56421153 is a deficient number, since it is larger than the sum of its proper divisors (27886707).

56421153 is a wasteful number, since it uses less digits than its factorization.

56421153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216208 (or 216205 counting only the distinct ones).

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

The square root of 56421153 is about 7511.4015336687. The cubic root of 56421153 is about 383.5429335564.

The spelling of 56421153 in words is "fifty-six million, four hundred twenty-one thousand, one hundred fifty-three".