1887372225 has 48 divisors (see below), whose sum is σ = 3579056640. Its totient is φ = 974116800.

The previous prime is 1887372209. The next prime is 1887372233. The reversal of 1887372225 is 5222737881.

It is not a de Polignac number, because 1887372225 - 2⁴ = 1887372209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24174 + ... + 66023.

It is an arithmetic number, because the mean of its divisors is an integer number (74563680).

Almost surely, 2^1887372225 is an apocalyptic number.

1887372225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1887372225 is a deficient number, since it is larger than the sum of its proper divisors (1691684415).

1887372225 is a wasteful number, since it uses less digits than its factorization.

1887372225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90247 (or 90236 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 1887372225 is about 43443.8974425638. The cubic root of 1887372225 is about 1235.8123183309.

The spelling of 1887372225 in words is "one billion, eight hundred eighty-seven million, three hundred seventy-two thousand, two hundred twenty-five".