2539503990 has 24 divisors (see below), whose sum is σ = 6602710608. Its totient is φ = 677201040.

The previous prime is 2539503983. The next prime is 2539503997. The reversal of 2539503990 is 993059352.

2539503990 is a `hidden beast` number, since 2 + 53 + 9 + 503 + 9 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (2539503983) and next prime (2539503997).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539503997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14108266 + ... + 14108445.

It is an arithmetic number, because the mean of its divisors is an integer number (275112942).

Almost surely, 2^2539503990 is an apocalyptic number.

2539503990 is an abundant number, since it is smaller than the sum of its proper divisors (4063206618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2539503990 is a wasteful number, since it uses less digits than its factorization.

2539503990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28216724 (or 28216721 counting only the distinct ones).

The product of its (nonzero) digits is 328050, while the sum is 45.

The square root of 2539503990 is about 50393.4915440476. The cubic root of 2539503990 is about 1364.3201702665.

The spelling of 2539503990 in words is "two billion, five hundred thirty-nine million, five hundred three thousand, nine hundred ninety".