251132451533441 has 8 divisors (see below), whose sum is σ = 251238022347264. Its totient is φ = 251026882792560.

The previous prime is 251132451533437. The next prime is 251132451533539. The reversal of 251132451533441 is 144335154231152.

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 251132451533441 - 2² = 251132451533437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 251132451533392 and 251132451533401.

It is not an unprimeable number, because it can be changed into a prime (251132451533741) 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, 271827296 + ... + 272749598.

It is an arithmetic number, because the mean of its divisors is an integer number (31404752793408).

Almost surely, 2^{251132451533441} is an apocalyptic number.

It is an amenable number.

251132451533441 is a deficient number, since it is larger than the sum of its proper divisors (105570813823).

251132451533441 is a wasteful number, since it uses less digits than its factorization.

251132451533441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036471.

The product of its digits is 864000, while the sum is 44.

The spelling of 251132451533441 in words is "two hundred fifty-one trillion, one hundred thirty-two billion, four hundred fifty-one million, five hundred thirty-three thousand, four hundred forty-one".