1552205312523 has 16 divisors (see below), whose sum is σ = 2399544445440. Its totient is φ = 989812082952.

The previous prime is 1552205312507. The next prime is 1552205312617. The reversal of 1552205312523 is 3252135022551.

1552205312523 is a `hidden beast` number, since 1 + 5 + 52 + 20 + 53 + 12 + 523 = 666.

It is not a de Polignac number, because 1552205312523 - 2⁴ = 1552205312507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1552205302523) 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, 1249762111 + ... + 1249763352.

It is an arithmetic number, because the mean of its divisors is an integer number (149971527840).

Almost surely, 2^{1552205312523} is an apocalyptic number.

1552205312523 is a deficient number, since it is larger than the sum of its proper divisors (847339132917).

1552205312523 is a wasteful number, since it uses less digits than its factorization.

1552205312523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499525495 (or 2499525489 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 1552205312523 in words is "one trillion, five hundred fifty-two billion, two hundred five million, three hundred twelve thousand, five hundred twenty-three".