56061405 has 24 divisors (see below), whose sum is σ = 97782048. Its totient is φ = 29712096.

The previous prime is 56061389. The next prime is 56061407. The reversal of 56061405 is 50416065.

It is a happy number.

56061405 is a `hidden beast` number, since 560 + 61 + 40 + 5 = 666.

It is not a de Polignac number, because 56061405 - 2⁴ = 56061389 is a prime.

It is a super-2 number, since 2×56061405² = 6285762261148050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56061407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3514 + ... + 11156.

It is an arithmetic number, because the mean of its divisors is an integer number (4074252).

Almost surely, 2^56061405 is an apocalyptic number.

It is an amenable number.

56061405 is a deficient number, since it is larger than the sum of its proper divisors (41720643).

56061405 is a wasteful number, since it uses less digits than its factorization.

56061405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817 (or 7814 counting only the distinct ones).

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

The square root of 56061405 is about 7487.4164436072. The cubic root of 56061405 is about 382.7260230209.

The spelling of 56061405 in words is "fifty-six million, sixty-one thousand, four hundred five".