2551001525 has 6 divisors (see below), whose sum is σ = 3163241922. Its totient is φ = 2040801200.

The previous prime is 2551001491. The next prime is 2551001527. The reversal of 2551001525 is 5251001552.

It can be written as a sum of positive squares in 3 ways, for example, as 186513649 + 2364487876 = 13657^2 + 48626^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2551001525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551001494 and 2551001503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551001527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51020006 + ... + 51020055.

It is an arithmetic number, because the mean of its divisors is an integer number (527206987).

Almost surely, 2^2551001525 is an apocalyptic number.

2551001525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2551001525 is a deficient number, since it is larger than the sum of its proper divisors (612240397).

2551001525 is a wasteful number, since it uses less digits than its factorization.

2551001525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102040071 (or 102040066 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 2551001525 is about 50507.4402934855. The cubic root of 2551001525 is about 1366.3760448531.

The spelling of 2551001525 in words is "two billion, five hundred fifty-one million, one thousand, five hundred twenty-five".