55450725 has 24 divisors (see below), whose sum is σ = 100014432. Its totient is φ = 26884800.

The previous prime is 55450711. The next prime is 55450739. The reversal of 55450725 is 52705455.

55450725 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 (55450711) and next prime (55450739).

It is not a de Polignac number, because 55450725 - 2⁴ = 55450709 is a prime.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32782 + ... + 34431.

It is an arithmetic number, because the mean of its divisors is an integer number (4167268).

Almost surely, 2^55450725 is an apocalyptic number.

55450725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55450725 is a deficient number, since it is larger than the sum of its proper divisors (44563707).

55450725 is a wasteful number, since it uses less digits than its factorization.

55450725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67237 (or 67232 counting only the distinct ones).

The product of its (nonzero) digits is 35000, while the sum is 33.

The square root of 55450725 is about 7446.5243570407. The cubic root of 55450725 is about 381.3312610087.

The spelling of 55450725 in words is "fifty-five million, four hundred fifty thousand, seven hundred twenty-five".