2251531125570 has 64 divisors (see below), whose sum is σ = 5624303195520. Its totient is φ = 576148059648.

The previous prime is 2251531125551. The next prime is 2251531125589. The reversal of 2251531125570 is 755211351522.

It is an interprime number because it is at equal distance from previous prime (2251531125551) and next prime (2251531125589).

It is a super-2 number, since 2×2251531125570² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7796739 + ... + 8080358.

It is an arithmetic number, because the mean of its divisors is an integer number (87879737430).

Almost surely, 2^{2251531125570} is an apocalyptic number.

2251531125570 is an abundant number, since it is smaller than the sum of its proper divisors (3372772069950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251531125570 is a wasteful number, since it uses less digits than its factorization.

2251531125570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15877299.

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 2251531125570 in words is "two trillion, two hundred fifty-one billion, five hundred thirty-one million, one hundred twenty-five thousand, five hundred seventy".