1552513021045 has 96 divisors (see below), whose sum is σ = 2325888746496. Its totient is φ = 990096307200.

The previous prime is 1552513021009. The next prime is 1552513021049. The reversal of 1552513021045 is 5401203152551.

It is not a de Polignac number, because 1552513021045 - 2¹⁷ = 1552512889973 is a prime.

It is a super-2 number, since 2×1552513021045² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1552513021045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552513021049) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20826259 + ... + 20900671.

It is an arithmetic number, because the mean of its divisors is an integer number (24228007776).

Almost surely, 2^{1552513021045} is an apocalyptic number.

It is an amenable number.

1552513021045 is a deficient number, since it is larger than the sum of its proper divisors (773375725451).

1552513021045 is a wasteful number, since it uses less digits than its factorization.

1552513021045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74571 (or 74564 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 1552513021045 its reverse (5401203152551), we get a palindrome (6953716173596).

The spelling of 1552513021045 in words is "one trillion, five hundred fifty-two billion, five hundred thirteen million, twenty-one thousand, forty-five".