1561060475 has 24 divisors (see below), whose sum is σ = 2095178400. Its totient is φ = 1146942720.

The previous prime is 1561060469. The next prime is 1561060493. The reversal of 1561060475 is 5740601651.

It is not a de Polignac number, because 1561060475 - 2⁸ = 1561060219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52607 + ... + 76743.

It is an arithmetic number, because the mean of its divisors is an integer number (87299100).

Almost surely, 2^1561060475 is an apocalyptic number.

1561060475 is a deficient number, since it is larger than the sum of its proper divisors (534117925).

1561060475 is a wasteful number, since it uses less digits than its factorization.

1561060475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24359 (or 24354 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 1561060475 is about 39510.2578452735. The cubic root of 1561060475 is about 1160.0407424751.

The spelling of 1561060475 in words is "one billion, five hundred sixty-one million, sixty thousand, four hundred seventy-five".