2151422625 has 32 divisors (see below), whose sum is σ = 3905426304. Its totient is φ = 1043112000.

The previous prime is 2151422593. The next prime is 2151422633. The reversal of 2151422625 is 5262241512.

It is not a de Polignac number, because 2151422625 - 2⁵ = 2151422593 is a prime.

It is a super-2 number, since 2×2151422625² = 9257238622723781250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2151422592 and 2151422601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256654 + ... + 264903.

It is an arithmetic number, because the mean of its divisors is an integer number (122044572).

Almost surely, 2^2151422625 is an apocalyptic number.

2151422625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2151422625 is a deficient number, since it is larger than the sum of its proper divisors (1754003679).

2151422625 is a wasteful number, since it uses less digits than its factorization.

2151422625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521586 (or 521576 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 2151422625 is about 46383.4305005570. The cubic root of 2151422625 is about 1290.9474891157.

The spelling of 2151422625 in words is "two billion, one hundred fifty-one million, four hundred twenty-two thousand, six hundred twenty-five".