1553111452525 has 24 divisors (see below), whose sum is σ = 1954845756864. Its totient is φ = 1223876371200.

The previous prime is 1553111452507. The next prime is 1553111452537. The reversal of 1553111452525 is 5252541113551.

It is not a de Polignac number, because 1553111452525 - 2²³ = 1553103063917 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411241 + ... + 1809790.

It is an arithmetic number, because the mean of its divisors is an integer number (81451906536).

Almost surely, 2^{1553111452525} is an apocalyptic number.

It is an amenable number.

1553111452525 is a deficient number, since it is larger than the sum of its proper divisors (401734304339).

1553111452525 is a wasteful number, since it uses less digits than its factorization.

1553111452525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221461 (or 2221456 counting only the distinct ones).

The product of its digits is 150000, while the sum is 40.

The spelling of 1553111452525 in words is "one trillion, five hundred fifty-three billion, one hundred eleven million, four hundred fifty-two thousand, five hundred twenty-five".