2523420513 has 16 divisors (see below), whose sum is σ = 3747051840. Its totient is φ = 1678387392.

The previous prime is 2523420509. The next prime is 2523420539. The reversal of 2523420513 is 3150243252.

It is a happy number.

It is not a de Polignac number, because 2523420513 - 2² = 2523420509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2523420583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96231 + ... + 119612.

It is an arithmetic number, because the mean of its divisors is an integer number (234190740).

Almost surely, 2^2523420513 is an apocalyptic number.

It is an amenable number.

2523420513 is a deficient number, since it is larger than the sum of its proper divisors (1223631327).

2523420513 is a wasteful number, since it uses less digits than its factorization.

2523420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216285 (or 216279 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2523420513 is about 50233.6591639510. The cubic root of 2523420513 is about 1361.4338455031.

Adding to 2523420513 its reverse (3150243252), we get a palindrome (5673663765).

The spelling of 2523420513 in words is "two billion, five hundred twenty-three million, four hundred twenty thousand, five hundred thirteen".