2525507986 has 8 divisors (see below), whose sum is σ = 3788766540. Its totient is φ = 1262585808.

The previous prime is 2525507977. The next prime is 2525507989. The reversal of 2525507986 is 6897055252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2433942225 + 91565761 = 49335^2 + 9569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a pancake number, because a pancake can be divided into 2525507986 parts by 71070 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (2525507989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64401 + ... + 95908.

Almost surely, 2^2525507986 is an apocalyptic number.

2525507986 is a deficient number, since it is larger than the sum of its proper divisors (1263258554).

2525507986 is a wasteful number, since it uses less digits than its factorization.

2525507986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168188.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The square root of 2525507986 is about 50254.4325010242. The cubic root of 2525507986 is about 1361.8091526281.

The spelling of 2525507986 in words is "two billion, five hundred twenty-five million, five hundred seven thousand, nine hundred eighty-six".