555250025 has 24 divisors (see below), whose sum is σ = 758576448. Its totient is φ = 399800000.

The previous prime is 555249991. The next prime is 555250027. The reversal of 555250025 is 520052555.

It is a happy number.

It is not a de Polignac number, because 555250025 - 2⁸ = 555249769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 555250025.

It is not an unprimeable number, because it can be changed into a prime (555250027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17780 + ... + 37770.

It is an arithmetic number, because the mean of its divisors is an integer number (31607352).

Almost surely, 2^555250025 is an apocalyptic number.

555250025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

555250025 is a deficient number, since it is larger than the sum of its proper divisors (203326423).

555250025 is a wasteful number, since it uses less digits than its factorization.

555250025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20113 (or 20108 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 555250025 is about 23563.7438663723. The cubic root of 555250025 is about 821.9199631798.

The spelling of 555250025 in words is "five hundred fifty-five million, two hundred fifty thousand, twenty-five".