56261405 has 4 divisors (see below), whose sum is σ = 67513692. Its totient is φ = 45009120.

The previous prime is 56261393. The next prime is 56261417. The reversal of 56261405 is 50416265.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (56261393) and next prime (56261417).

It can be written as a sum of positive squares in 2 ways, for example, as 40729924 + 15531481 = 6382^2 + 3941^2 .

It is not a de Polignac number, because 56261405 - 2⁶ = 56261341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5626136 + ... + 5626145.

It is an arithmetic number, because the mean of its divisors is an integer number (16878423).

Almost surely, 2^56261405 is an apocalyptic number.

It is an amenable number.

56261405 is a deficient number, since it is larger than the sum of its proper divisors (11252287).

56261405 is a wasteful number, since it uses less digits than its factorization.

56261405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11252286.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 56261405 is about 7500.7602947968. The cubic root of 56261405 is about 383.1806100293.

The spelling of 56261405 in words is "fifty-six million, two hundred sixty-one thousand, four hundred five".