2528376725 has 36 divisors (see below), whose sum is σ = 3736081188. Its totient is φ = 1691424000.

The previous prime is 2528376691. The next prime is 2528376727. The reversal of 2528376725 is 5276738252.

It can be written as a sum of positive squares in 6 ways, for example, as 367335556 + 2161041169 = 19166^2 + 46487^2 .

It is not a de Polignac number, because 2528376725 - 2⁶ = 2528376661 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2528376725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528376727) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25055 + ... + 75395.

It is an arithmetic number, because the mean of its divisors is an integer number (103780033).

Almost surely, 2^2528376725 is an apocalyptic number.

2528376725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2528376725 is a deficient number, since it is larger than the sum of its proper divisors (1207704463).

2528376725 is a wasteful number, since it uses less digits than its factorization.

2528376725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50406 (or 50394 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 47.

The square root of 2528376725 is about 50282.9665493197. The cubic root of 2528376725 is about 1362.3245864572.

The spelling of 2528376725 in words is "two billion, five hundred twenty-eight million, three hundred seventy-six thousand, seven hundred twenty-five".