2507947971 has 8 divisors (see below), whose sum is σ = 3369457344. Its totient is φ = 1659201960.

The previous prime is 2507947931. The next prime is 2507947979. The reversal of 2507947971 is 1797497052.

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

It is not a de Polignac number, because 2507947971 - 2²² = 2503753667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2507947979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190381 + ... + 3191166.

It is an arithmetic number, because the mean of its divisors is an integer number (421182168).

Almost surely, 2^2507947971 is an apocalyptic number.

2507947971 is a deficient number, since it is larger than the sum of its proper divisors (861509373).

2507947971 is a wasteful number, since it uses less digits than its factorization.

2507947971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381681.

The product of its (nonzero) digits is 1111320, while the sum is 51.

The square root of 2507947971 is about 50079.4166399730. The cubic root of 2507947971 is about 1358.6455609689.

The spelling of 2507947971 in words is "two billion, five hundred seven million, nine hundred forty-seven thousand, nine hundred seventy-one".