2251501378 has 8 divisors (see below), whose sum is σ = 3859716672. Its totient is φ = 964929156.

The previous prime is 2251501367. The next prime is 2251501379. The reversal of 2251501378 is 8731051522.

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

It is not an unprimeable number, because it can be changed into a prime (2251501379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80410750 + ... + 80410777.

It is an arithmetic number, because the mean of its divisors is an integer number (482464584).

Almost surely, 2^2251501378 is an apocalyptic number.

2251501378 is a deficient number, since it is larger than the sum of its proper divisors (1608215294).

2251501378 is a wasteful number, since it uses less digits than its factorization.

2251501378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160821536.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 2251501378 is about 47449.9881770270. The cubic root of 2251501378 is about 1310.6620932979.

The spelling of 2251501378 in words is "two billion, two hundred fifty-one million, five hundred one thousand, three hundred seventy-eight".