2561525070 has 64 divisors (see below), whose sum is σ = 6681407040. Its totient is φ = 624734208.

The previous prime is 2561525063. The next prime is 2561525077. The reversal of 2561525070 is 705251652.

2561525070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2561525063) and next prime (2561525077).

It is a super-2 number, since 2×2561525070² = 13122821368477009800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561525077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12382 + ... + 72638.

It is an arithmetic number, because the mean of its divisors is an integer number (104396985).

Almost surely, 2^2561525070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2561525070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3340703520).

2561525070 is an abundant number, since it is smaller than the sum of its proper divisors (4119881970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2561525070 is a wasteful number, since it uses less digits than its factorization.

2561525070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60389.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 2561525070 is about 50611.5112400331. The cubic root of 2561525070 is about 1368.2523526886.

The spelling of 2561525070 in words is "two billion, five hundred sixty-one million, five hundred twenty-five thousand, seventy".