2251409381501 has 8 divisors (see below), whose sum is σ = 2573099382720. Its totient is φ = 1929734402688.

The previous prime is 2251409381413. The next prime is 2251409381513. The reversal of 2251409381501 is 1051839041522.

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 2251409381501 - 2¹⁸ = 2251409119357 is a prime.

It is a super-2 number, since 2×2251409381501² (a number of 26 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 (2251409381521) 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, 3432596 + ... + 4035533.

It is an arithmetic number, because the mean of its divisors is an integer number (321637422840).

Almost surely, 2^{2251409381501} is an apocalyptic number.

It is an amenable number.

2251409381501 is a deficient number, since it is larger than the sum of its proper divisors (321690001219).

2251409381501 is an equidigital number, since it uses as much as digits as its factorization.

2251409381501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7511203.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 2251409381501 in words is "two trillion, two hundred fifty-one billion, four hundred nine million, three hundred eighty-one thousand, five hundred one".