287925053 has 4 divisors (see below), whose sum is σ = 310073148. Its totient is φ = 265776960.

The previous prime is 287925047. The next prime is 287925061. The reversal of 287925053 is 350529782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185449924 + 102475129 = 13618^2 + 10123^2 .

It is a cyclic number.

It is not a de Polignac number, because 287925053 - 2¹² = 287920957 is a prime.

It is a super-2 number, since 2×287925053² = 165801672290105618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287925053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287925553) 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, 11074028 + ... + 11074053.

It is an arithmetic number, because the mean of its divisors is an integer number (77518287).

Almost surely, 2^287925053 is an apocalyptic number.

It is an amenable number.

287925053 is a deficient number, since it is larger than the sum of its proper divisors (22148095).

287925053 is a wasteful number, since it uses less digits than its factorization.

287925053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22148094.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 287925053 is about 16968.3544576367. The cubic root of 287925053 is about 660.3281601930.

The spelling of 287925053 in words is "two hundred eighty-seven million, nine hundred twenty-five thousand, fifty-three".