251116152 has 32 divisors (see below), whose sum is σ = 717475200. Its totient is φ = 71747424.

The previous prime is 251116147. The next prime is 251116153. The reversal of 251116152 is 251611152.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251116153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747202 + ... + 747537.

It is an arithmetic number, because the mean of its divisors is an integer number (22421100).

Almost surely, 2^251116152 is an apocalyptic number.

It is an amenable number.

251116152 is an abundant number, since it is smaller than the sum of its proper divisors (466359048).

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

251116152 is a wasteful number, since it uses less digits than its factorization.

251116152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494755 (or 1494751 counting only the distinct ones).

The product of its digits is 600, while the sum is 24.

The square root of 251116152 is about 15846.6448183835. The cubic root of 251116152 is about 630.8966421276.

It can be divided in two parts, 251 and 116152, that added together give a triangular number (116403 = T₄₈₂).

The spelling of 251116152 in words is "two hundred fifty-one million, one hundred sixteen thousand, one hundred fifty-two".