56201405 has 32 divisors (see below), whose sum is σ = 77601888. Its totient is φ = 38707200.

The previous prime is 56201377. The next prime is 56201413. The reversal of 56201405 is 50410265.

It can be written as a sum of positive squares in 16 ways, for example, as 26759929 + 29441476 = 5173^2 + 5426^2 .

It is not a de Polignac number, because 56201405 - 2¹⁶ = 56135869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199865 + ... + 200145.

It is an arithmetic number, because the mean of its divisors is an integer number (2425059).

Almost surely, 2^56201405 is an apocalyptic number.

It is an amenable number.

56201405 is a deficient number, since it is larger than the sum of its proper divisors (21400483).

56201405 is a wasteful number, since it uses less digits than its factorization.

56201405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 56201405 is about 7496.7596333349. The cubic root of 56201405 is about 383.0443472021.

It can be divided in two parts, 5620 and 1405, that multiplied together give a square (7896100 = 2810²).

The spelling of 56201405 in words is "fifty-six million, two hundred one thousand, four hundred five".