2523404043252 has 72 divisors (see below), whose sum is σ = 6759278567496. Its totient is φ = 791015952384.

The previous prime is 2523404043229. The next prime is 2523404043257.

2523404043252 is a `hidden beast` number, since 2 + 523 + 4 + 0 + 40 + 43 + 2 + 52 = 666.

2523404043252 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 1233512324496 + 1289891718756 = 1110636^2 + 1135734^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523404043257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 909573 + ... + 2423660.

It is an arithmetic number, because the mean of its divisors is an integer number (93878868993).

Almost surely, 2^{2523404043252} is an apocalyptic number.

It is an amenable number.

2523404043252 is an abundant number, since it is smaller than the sum of its proper divisors (4235874524244).

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

2523404043252 is a wasteful number, since it uses less digits than its factorization.

2523404043252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334497 (or 3334492 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

The spelling of 2523404043252 in words is "two trillion, five hundred twenty-three billion, four hundred four million, forty-three thousand, two hundred fifty-two".