123554025 has 96 divisors (see below), whose sum is σ = 263475200. Its totient is φ = 55598400.

The previous prime is 123554021. The next prime is 123554047. The reversal of 123554025 is 520455321.

It is a happy number.

It is not a de Polignac number, because 123554025 - 2² = 123554021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 123554025.

It is not an unprimeable number, because it can be changed into a prime (123554021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 373110 + ... + 373440.

Almost surely, 2^123554025 is an apocalyptic number.

123554025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123554025 is an abundant number, since it is smaller than the sum of its proper divisors (139921175).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123554025 is a wasteful number, since it uses less digits than its factorization.

123554025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 123554025 is about 11115.4858193423. The cubic root of 123554025 is about 498.0645510751.

The spelling of 123554025 in words is "one hundred twenty-three million, five hundred fifty-four thousand, twenty-five".