7415561252021 has 16 divisors (see below), whose sum is σ = 8728519339008. Its totient is φ = 6234656659200.

The previous prime is 7415561252003. The next prime is 7415561252041. The reversal of 7415561252021 is 1202521655147.

It is a cyclic number.

It is not a de Polignac number, because 7415561252021 - 2¹⁸ = 7415560989877 is a prime.

It is a super-2 number, since 2×7415561252021² (a number of 27 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 7415561252021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7415561252041) 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, 541195985 + ... + 541209686.

It is an arithmetic number, because the mean of its divisors is an integer number (545532458688).

Almost surely, 2^{7415561252021} is an apocalyptic number.

It is an amenable number.

7415561252021 is a deficient number, since it is larger than the sum of its proper divisors (1312958086987).

7415561252021 is a wasteful number, since it uses less digits than its factorization.

7415561252021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082405732.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 7415561252021 in words is "seven trillion, four hundred fifteen billion, five hundred sixty-one million, two hundred fifty-two thousand, twenty-one".