251552022 has 8 divisors (see below), whose sum is σ = 503104056. Its totient is φ = 83850672.

The previous prime is 251551997. The next prime is 251552023. The reversal of 251552022 is 220255152.

It is a sphenic number, since it is the product of 3 distinct primes.

251552022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 251551983 and 251552001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251552023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20962663 + ... + 20962674.

It is an arithmetic number, because the mean of its divisors is an integer number (62888007).

Almost surely, 2^251552022 is an apocalyptic number.

251552022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

251552022 is a wasteful number, since it uses less digits than its factorization.

251552022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41925342.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 251552022 is about 15860.3916092888. The cubic root of 251552022 is about 631.2614533490.

The spelling of 251552022 in words is "two hundred fifty-one million, five hundred fifty-two thousand, twenty-two".