2501873555 has 4 divisors (see below), whose sum is σ = 3002248272. Its totient is φ = 2001498840.

The previous prime is 2501873537. The next prime is 2501873579. The reversal of 2501873555 is 5553781052.

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

It is not a de Polignac number, because 2501873555 - 2⁸ = 2501873299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250187351 + ... + 250187360.

It is an arithmetic number, because the mean of its divisors is an integer number (750562068).

Almost surely, 2^2501873555 is an apocalyptic number.

2501873555 is a deficient number, since it is larger than the sum of its proper divisors (500374717).

2501873555 is an equidigital number, since it uses as much as digits as its factorization.

2501873555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500374716.

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 2501873555 is about 50018.7320411064. The cubic root of 2501873555 is about 1357.5477643510.

The spelling of 2501873555 in words is "two billion, five hundred one million, eight hundred seventy-three thousand, five hundred fifty-five".