2561510470 has 16 divisors (see below), whose sum is σ = 4759452288. Its totient is φ = 991552320.

The previous prime is 2561510467. The next prime is 2561510477. The reversal of 2561510470 is 740151652.

It is a super-2 number, since 2×2561510470² = 13122671775839241800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561510477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4131159 + ... + 4131778.

It is an arithmetic number, because the mean of its divisors is an integer number (297465768).

Almost surely, 2^2561510470 is an apocalyptic number.

2561510470 is a deficient number, since it is larger than the sum of its proper divisors (2197941818).

2561510470 is a wasteful number, since it uses less digits than its factorization.

2561510470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262975.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 2561510470 is about 50611.3670038658. The cubic root of 2561510470 is about 1368.2497531275.

The spelling of 2561510470 in words is "two billion, five hundred sixty-one million, five hundred ten thousand, four hundred seventy".