252215557626541 has 8 divisors (see below), whose sum is σ = 258367538205504. Its totient is φ = 246063595219680.

The previous prime is 252215557626523. The next prime is 252215557626569. The reversal of 252215557626541 is 145626755512252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252215557626541 - 2⁵ = 252215557626509 is a prime.

It is a super-2 number, since 2×252215557626541² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252215557626521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26033656 + ... + 34382878.

It is an arithmetic number, because the mean of its divisors is an integer number (32295942275688).

Almost surely, 2^{252215557626541} is an apocalyptic number.

It is an amenable number.

252215557626541 is a deficient number, since it is larger than the sum of its proper divisors (6151980578963).

252215557626541 is an equidigital number, since it uses as much as digits as its factorization.

252215557626541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9086051.

The product of its digits is 50400000, while the sum is 58.

The spelling of 252215557626541 in words is "two hundred fifty-two trillion, two hundred fifteen billion, five hundred fifty-seven million, six hundred twenty-six thousand, five hundred forty-one".