2512222551 has 12 divisors (see below), whose sum is σ = 3642566928. Its totient is φ = 1668445344.

The previous prime is 2512222529. The next prime is 2512222621. The reversal of 2512222551 is 1552222152.

It is a happy number.

It is not a de Polignac number, because 2512222551 - 2⁵ = 2512222519 is a prime.

It is a super-2 number, since 2×2512222551² = 12622524291505895202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512222751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 528310 + ... + 533043.

It is an arithmetic number, because the mean of its divisors is an integer number (303547244).

Almost surely, 2^2512222551 is an apocalyptic number.

2512222551 is a deficient number, since it is larger than the sum of its proper divisors (1130344377).

2512222551 is a wasteful number, since it uses less digits than its factorization.

2512222551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061622 (or 1061619 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 2512222551 is about 50122.0764833222. The cubic root of 2512222551 is about 1359.4170207161.

The spelling of 2512222551 in words is "two billion, five hundred twelve million, two hundred twenty-two thousand, five hundred fifty-one".