2523012440 has 32 divisors (see below), whose sum is σ = 6113454480. Its totient is φ = 931573632.

The previous prime is 2523012409. The next prime is 2523012467. The reversal of 2523012440 is 442103252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2425454 + ... + 2426493.

Almost surely, 2^2523012440 is an apocalyptic number.

2523012440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2523012440 is an abundant number, since it is smaller than the sum of its proper divisors (3590442040).

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

2523012440 is a wasteful number, since it uses less digits than its factorization.

2523012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851971 (or 4851967 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2523012440 is about 50229.5972510232. The cubic root of 2523012440 is about 1361.3604538057.

Adding to 2523012440 its reverse (442103252), we get a palindrome (2965115692).

The spelling of 2523012440 in words is "two billion, five hundred twenty-three million, twelve thousand, four hundred forty".