2551252542 has 16 divisors (see below), whose sum is σ = 5103025920. Its totient is φ = 850330712.

The previous prime is 2551252541. The next prime is 2551252547. The reversal of 2551252542 is 2452521552.

It is a happy number.

It is a super-2 number, since 2×2551252542² = 13017779066122923528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551252541) 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, 75403 + ... + 103865.

It is an arithmetic number, because the mean of its divisors is an integer number (318939120).

Almost surely, 2^2551252542 is an apocalyptic number.

2551252542 is an abundant number, since it is smaller than the sum of its proper divisors (2551773378).

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

2551252542 is a wasteful number, since it uses less digits than its factorization.

2551252542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43407.

The product of its digits is 40000, while the sum is 33.

The square root of 2551252542 is about 50509.9251830766. The cubic root of 2551252542 is about 1366.4208602407.

The spelling of 2551252542 in words is "two billion, five hundred fifty-one million, two hundred fifty-two thousand, five hundred forty-two".