2561562152 has 8 divisors (see below), whose sum is σ = 4802929050. Its totient is φ = 1280781072.

The previous prime is 2561562151. The next prime is 2561562247. The reversal of 2561562152 is 2512651652.

It can be written as a sum of positive squares in only one way, i.e., 1931250916 + 630311236 = 43946^2 + 25106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2561562152² = 13123201317117742208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2561562151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160097627 + ... + 160097642.

Almost surely, 2^2561562152 is an apocalyptic number.

It is an amenable number.

2561562152 is a deficient number, since it is larger than the sum of its proper divisors (2241366898).

2561562152 is a wasteful number, since it uses less digits than its factorization.

2561562152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320195275 (or 320195271 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 2561562152 is about 50611.8775782918. The cubic root of 2561562152 is about 1368.2589551731.

The spelling of 2561562152 in words is "two billion, five hundred sixty-one million, five hundred sixty-two thousand, one hundred fifty-two".