55133657425 has 48 divisors (see below), whose sum is σ = 85363857792. Its totient is φ = 34317158400.

The previous prime is 55133657393. The next prime is 55133657431. The reversal of 55133657425 is 52475633155.

55133657425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55133657425 - 2⁵ = 55133657393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1274247 + ... + 1316803.

It is an arithmetic number, because the mean of its divisors is an integer number (1778413704).

Almost surely, 2^55133657425 is an apocalyptic number.

55133657425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55133657425 is a deficient number, since it is larger than the sum of its proper divisors (30230200367).

55133657425 is a wasteful number, since it uses less digits than its factorization.

55133657425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43258 (or 43253 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 46.

The spelling of 55133657425 in words is "fifty-five billion, one hundred thirty-three million, six hundred fifty-seven thousand, four hundred twenty-five".