2525131577 has 4 divisors (see below), whose sum is σ = 2562820176. Its totient is φ = 2487442980.

The previous prime is 2525131547. The next prime is 2525131633. The reversal of 2525131577 is 7751315252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2525131577 - 2⁸ = 2525131321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2525131577.

It is not an unprimeable number, because it can be changed into a prime (2525131507) 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, 18844199 + ... + 18844332.

It is an arithmetic number, because the mean of its divisors is an integer number (640705044).

Almost surely, 2^2525131577 is an apocalyptic number.

It is an amenable number.

2525131577 is a deficient number, since it is larger than the sum of its proper divisors (37688599).

2525131577 is an equidigital number, since it uses as much as digits as its factorization.

2525131577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37688598.

The product of its digits is 73500, while the sum is 38.

The square root of 2525131577 is about 50250.6873286326. The cubic root of 2525131577 is about 1361.7414932777.

The spelling of 2525131577 in words is "two billion, five hundred twenty-five million, one hundred thirty-one thousand, five hundred seventy-seven".