55155325 has 12 divisors (see below), whose sum is σ = 68700960. Its totient is φ = 43925360.

The previous prime is 55155307. The next prime is 55155343. The reversal of 55155325 is 52355155.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (55155307) and next prime (55155343).

It is not a de Polignac number, because 55155325 - 2²³ = 46766717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 816 + ... + 10534.

It is an arithmetic number, because the mean of its divisors is an integer number (5725080).

Almost surely, 2^55155325 is an apocalyptic number.

It is an amenable number.

55155325 is a deficient number, since it is larger than the sum of its proper divisors (13545635).

55155325 is a wasteful number, since it uses less digits than its factorization.

55155325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9956 (or 9951 counting only the distinct ones).

The product of its digits is 18750, while the sum is 31.

The square root of 55155325 is about 7426.6631134043. The cubic root of 55155325 is about 380.6529057151.

The spelling of 55155325 in words is "fifty-five million, one hundred fifty-five thousand, three hundred twenty-five".