55725458 has 8 divisors (see below), whose sum is σ = 87222528. Its totient is φ = 26651284.

The previous prime is 55725451. The next prime is 55725491. The reversal of 55725458 is 85452755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55725451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605666 + ... + 605757.

It is an arithmetic number, because the mean of its divisors is an integer number (10902816).

Almost surely, 2^55725458 is an apocalyptic number.

55725458 is a deficient number, since it is larger than the sum of its proper divisors (31497070).

55725458 is a wasteful number, since it uses less digits than its factorization.

55725458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211448.

The product of its digits is 280000, while the sum is 41.

The square root of 55725458 is about 7464.9486267489. The cubic root of 55725458 is about 381.9599978214.

The spelling of 55725458 in words is "fifty-five million, seven hundred twenty-five thousand, four hundred fifty-eight".