223631925 has 48 divisors (see below), whose sum is σ = 406069248. Its totient is φ = 107697600.

The previous prime is 223631911. The next prime is 223631939. The reversal of 223631925 is 529136322.

223631925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (223631911) and next prime (223631939).

It is not a de Polignac number, because 223631925 - 2⁸ = 223631669 is a prime.

It is a super-2 number, since 2×223631925² = 100022475758411250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 133644 + ... + 135306.

It is an arithmetic number, because the mean of its divisors is an integer number (8459776).

Almost surely, 2^223631925 is an apocalyptic number.

223631925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223631925 is a deficient number, since it is larger than the sum of its proper divisors (182437323).

223631925 is a wasteful number, since it uses less digits than its factorization.

223631925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850 (or 1845 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 223631925 is about 14954.3279688524. The cubic root of 223631925 is about 606.9849654347.

The spelling of 223631925 in words is "two hundred twenty-three million, six hundred thirty-one thousand, nine hundred twenty-five".