2501539997 has 8 divisors (see below), whose sum is σ = 2775206880. Its totient is φ = 2235582160.

The previous prime is 2501539979. The next prime is 2501540051. The reversal of 2501539997 is 7999351052.

It is a happy number.

2501539997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2501539997 - 2⁶ = 2501539933 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 (2501539907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926578 + ... + 1927875.

It is an arithmetic number, because the mean of its divisors is an integer number (346900860).

Almost surely, 2^2501539997 is an apocalyptic number.

It is an amenable number.

2501539997 is a deficient number, since it is larger than the sum of its proper divisors (273666883).

2501539997 is a wasteful number, since it uses less digits than its factorization.

2501539997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854523.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 2501539997 is about 50015.3975991394. The cubic root of 2501539997 is about 1357.4874307607.

The spelling of 2501539997 in words is "two billion, five hundred one million, five hundred thirty-nine thousand, nine hundred ninety-seven".