55528371 has 12 divisors (see below), whose sum is σ = 83695248. Its totient is φ = 35409264.

The previous prime is 55528357. The next prime is 55528373. The reversal of 55528371 is 17382555.

It is not a de Polignac number, because 55528371 - 2⁵ = 55528339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55528373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133920 + ... + 134333.

It is an arithmetic number, because the mean of its divisors is an integer number (6974604).

Almost surely, 2^55528371 is an apocalyptic number.

55528371 is a deficient number, since it is larger than the sum of its proper divisors (28166877).

55528371 is a wasteful number, since it uses less digits than its factorization.

55528371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268282 (or 268279 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 55528371 is about 7451.7361064386. The cubic root of 55528371 is about 381.5091669345.

The spelling of 55528371 in words is "fifty-five million, five hundred twenty-eight thousand, three hundred seventy-one".