135553025 has 12 divisors (see below), whose sum is σ = 168231792. Its totient is φ = 108348240.

The previous prime is 135553013. The next prime is 135553037. The reversal of 135553025 is 520355531.

It is an interprime number because it is at equal distance from previous prime (135553013) and next prime (135553037).

It is not a de Polignac number, because 135553025 - 2¹⁴ = 135536641 is a prime.

It is a Duffinian 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, 48722 + ... + 51428.

It is an arithmetic number, because the mean of its divisors is an integer number (14019316).

Almost surely, 2^135553025 is an apocalyptic number.

It is an amenable number.

135553025 is a deficient number, since it is larger than the sum of its proper divisors (32678767).

135553025 is a wasteful number, since it uses less digits than its factorization.

135553025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720 (or 4715 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 135553025 is about 11642.7241228159. The cubic root of 135553025 is about 513.6923181412.

The spelling of 135553025 in words is "one hundred thirty-five million, five hundred fifty-three thousand, twenty-five".