251152455 has 16 divisors (see below), whose sum is σ = 406932480. Its totient is φ = 132251808.

The previous prime is 251152453. The next prime is 251152471. The reversal of 251152455 is 554251152.

251152455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 251152455 - 2¹ = 251152453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251152453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104787 + ... + 107156.

It is an arithmetic number, because the mean of its divisors is an integer number (25433280).

Almost surely, 2^251152455 is an apocalyptic number.

251152455 is a deficient number, since it is larger than the sum of its proper divisors (155780025).

251152455 is a wasteful number, since it uses less digits than its factorization.

251152455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212030.

The product of its digits is 10000, while the sum is 30.

The square root of 251152455 is about 15847.7902245076. The cubic root of 251152455 is about 630.9270428499.

The spelling of 251152455 in words is "two hundred fifty-one million, one hundred fifty-two thousand, four hundred fifty-five".