2501402647 has 4 divisors (see below), whose sum is σ = 2501565976. Its totient is φ = 2501239320.

The previous prime is 2501402641. The next prime is 2501402671. The reversal of 2501402647 is 7462041052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2501402647 - 2³ = 2501402639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501402641) 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, 56004 + ... + 90217.

It is an arithmetic number, because the mean of its divisors is an integer number (625391494).

Almost surely, 2^2501402647 is an apocalyptic number.

2501402647 is a deficient number, since it is larger than the sum of its proper divisors (163329).

2501402647 is a wasteful number, since it uses less digits than its factorization.

2501402647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163328.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2501402647 is about 50014.0245031331. The cubic root of 2501402647 is about 1357.4625854905.

Adding to 2501402647 its reverse (7462041052), we get a palindrome (9963443699).

The spelling of 2501402647 in words is "two billion, five hundred one million, four hundred two thousand, six hundred forty-seven".