56061261 has 16 divisors (see below), whose sum is σ = 83425600. Its totient is φ = 37206864.

The previous prime is 56061233. The next prime is 56061287. The reversal of 56061261 is 16216065.

It is a happy number.

It is not a de Polignac number, because 56061261 - 2⁶ = 56061197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56061211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (5214100).

Almost surely, 2^56061261 is an apocalyptic number.

It is an amenable number.

56061261 is a deficient number, since it is larger than the sum of its proper divisors (27364339).

56061261 is a wasteful number, since it uses less digits than its factorization.

56061261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305 (or 9299 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 56061261 is about 7487.4068274670. The cubic root of 56061261 is about 382.7256953291.

The spelling of 56061261 in words is "fifty-six million, sixty-one thousand, two hundred sixty-one".