2251915390 has 16 divisors (see below), whose sum is σ = 4054087008. Its totient is φ = 900624096.

The previous prime is 2251915381. The next prime is 2251915399. The reversal of 2251915390 is 935191522.

It is an interprime number because it is at equal distance from previous prime (2251915381) and next prime (2251915399).

It is a super-2 number, since 2×2251915390² = 10142245847437704200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251915399) 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, 69004 + ... + 96256.

It is an arithmetic number, because the mean of its divisors is an integer number (253380438).

Almost surely, 2^2251915390 is an apocalyptic number.

2251915390 is a deficient number, since it is larger than the sum of its proper divisors (1802171618).

2251915390 is a wasteful number, since it uses less digits than its factorization.

2251915390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35523.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 2251915390 is about 47454.3505908573. The cubic root of 2251915390 is about 1310.7424243728.

The spelling of 2251915390 in words is "two billion, two hundred fifty-one million, nine hundred fifteen thousand, three hundred ninety".