287623053025 has 135 divisors (see below), whose sum is σ = 459642763923. Its totient is φ = 178396495200.

The previous prime is 287623053017. The next prime is 287623053041. The reversal of 287623053025 is 520350326782.

The square root of 287623053025 is 536305.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 103544299089 + 184078753936 = 321783^2 + 429044^2 .

It is not a de Polignac number, because 287623053025 - 2³ = 287623053017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1445341876 + ... + 1445342074.

Almost surely, 2^287623053025 is an apocalyptic number.

287623053025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

287623053025 is the 536305-th square number.

287623053025 is the 268153-rd centered octagonal number.

It is an amenable number.

287623053025 is a deficient number, since it is larger than the sum of its proper divisors (172019710898).

287623053025 is an frugal number, since it uses more digits than its factorization.

287623053025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 287623053025 in words is "two hundred eighty-seven billion, six hundred twenty-three million, fifty-three thousand, twenty-five".