1252341523551 has 8 divisors (see below), whose sum is σ = 1670180592304. Its totient is φ = 834698401920.

The previous prime is 1252341523547. The next prime is 1252341523561. The reversal of 1252341523551 is 1553251432521.

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

It is not a de Polignac number, because 1252341523551 - 2² = 1252341523547 is a prime.

It is a super-3 number, since 3×1252341523551³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252341523501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48971866 + ... + 48997431.

It is an arithmetic number, because the mean of its divisors is an integer number (208772574038).

Almost surely, 2^{1252341523551} is an apocalyptic number.

1252341523551 is a deficient number, since it is larger than the sum of its proper divisors (417839068753).

1252341523551 is an equidigital number, since it uses as much as digits as its factorization.

1252341523551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97973561.

The product of its digits is 180000, while the sum is 39.

The spelling of 1252341523551 in words is "one trillion, two hundred fifty-two billion, three hundred forty-one million, five hundred twenty-three thousand, five hundred fifty-one".