2523021849 has 24 divisors (see below), whose sum is σ = 3704673024. Its totient is φ = 1654296000.

The previous prime is 2523021829. The next prime is 2523021883. The reversal of 2523021849 is 9481203252.

It is a happy number.

It is not a de Polignac number, because 2523021849 - 2⁵ = 2523021817 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2523021829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270829 + ... + 279989.

It is an arithmetic number, because the mean of its divisors is an integer number (154361376).

Almost surely, 2^2523021849 is an apocalyptic number.

It is an amenable number.

2523021849 is a deficient number, since it is larger than the sum of its proper divisors (1181651175).

2523021849 is a wasteful number, since it uses less digits than its factorization.

2523021849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669 (or 9666 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2523021849 is about 50229.6909108547. The cubic root of 2523021849 is about 1361.3621460981.

The spelling of 2523021849 in words is "two billion, five hundred twenty-three million, twenty-one thousand, eight hundred forty-nine".