2520391083 has 32 divisors (see below), whose sum is σ = 4243332096. Its totient is φ = 1296565248.

The previous prime is 2520391079. The next prime is 2520391091. The reversal of 2520391083 is 3801930252.

It is not a de Polignac number, because 2520391083 - 2² = 2520391079 is a prime.

It is a super-2 number, since 2×2520391083² = 12704742422531825778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2520390083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145266 + ... + 161687.

It is an arithmetic number, because the mean of its divisors is an integer number (132604128).

Almost surely, 2^2520391083 is an apocalyptic number.

2520391083 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2520391083 is a deficient number, since it is larger than the sum of its proper divisors (1722941013).

2520391083 is a wasteful number, since it uses less digits than its factorization.

2520391083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307003.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2520391083 is about 50203.4967208460. The cubic root of 2520391083 is about 1360.8888154424. Note that the first 4 decimals are identical.

The spelling of 2520391083 in words is "two billion, five hundred twenty million, three hundred ninety-one thousand, eighty-three".