381572253 has 6 divisors (see below), whose sum is σ = 551159934. Its totient is φ = 254381496.

The previous prime is 381572251. The next prime is 381572297. The reversal of 381572253 is 352275183.

It is a happy number.

381572253 is a `hidden beast` number, since 3 + 81 + 572 + 2 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 275626404 + 105945849 = 16602^2 + 10293^2 .

It is not a de Polignac number, because 381572253 - 2¹ = 381572251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381572251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21198450 + ... + 21198467.

It is an arithmetic number, because the mean of its divisors is an integer number (91859989).

Almost surely, 2^381572253 is an apocalyptic number.

It is an amenable number.

381572253 is a deficient number, since it is larger than the sum of its proper divisors (169587681).

381572253 is a wasteful number, since it uses less digits than its factorization.

381572253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42396923 (or 42396920 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 381572253 is about 19533.8745004671. The cubic root of 381572253 is about 725.3132236747.

The spelling of 381572253 in words is "three hundred eighty-one million, five hundred seventy-two thousand, two hundred fifty-three".