2625125291 has 16 divisors (see below), whose sum is σ = 2900812800. Its totient is φ = 2365912800.

The previous prime is 2625125257. The next prime is 2625125297. The reversal of 2625125291 is 1925215262.

2625125291 = 224² + 225² + ... + 1990².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2625125291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2625125297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3020 + ... + 72521.

It is an arithmetic number, because the mean of its divisors is an integer number (181300800).

Almost surely, 2^2625125291 is an apocalyptic number.

2625125291 is a deficient number, since it is larger than the sum of its proper divisors (275687509).

2625125291 is a wasteful number, since it uses less digits than its factorization.

2625125291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75650.

The product of its digits is 21600, while the sum is 35.

The square root of 2625125291 is about 51235.9765301687. The cubic root of 2625125291 is about 1379.4840350394.

The spelling of 2625125291 in words is "two billion, six hundred twenty-five million, one hundred twenty-five thousand, two hundred ninety-one".