133552725 has 12 divisors (see below), whose sum is σ = 220807296. Its totient is φ = 71228080.

The previous prime is 133552717. The next prime is 133552733. The reversal of 133552725 is 527255331.

It is an interprime number because it is at equal distance from previous prime (133552717) and next prime (133552733).

It is not a de Polignac number, because 133552725 - 2³ = 133552717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 890277 + ... + 890426.

It is an arithmetic number, because the mean of its divisors is an integer number (18400608).

Almost surely, 2^133552725 is an apocalyptic number.

133552725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133552725 is a deficient number, since it is larger than the sum of its proper divisors (87254571).

133552725 is a wasteful number, since it uses less digits than its factorization.

133552725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780716 (or 1780711 counting only the distinct ones).

The product of its digits is 31500, while the sum is 33.

The square root of 133552725 is about 11556.5014169514. The cubic root of 133552725 is about 511.1530045564.

The spelling of 133552725 in words is "one hundred thirty-three million, five hundred fifty-two thousand, seven hundred twenty-five".