55589157 has 24 divisors (see below), whose sum is σ = 86728824. Its totient is φ = 34107264.

The previous prime is 55589141. The next prime is 55589173. The reversal of 55589157 is 75198555.

55589157 is a `hidden beast` number, since 5 + 558 + 91 + 5 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (55589141) and next prime (55589173).

It can be written as a sum of positive squares in 4 ways, for example, as 5377761 + 50211396 = 2319^2 + 7086^2 .

It is not a de Polignac number, because 55589157 - 2⁴ = 55589141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55589197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64743 + ... + 65595.

It is an arithmetic number, because the mean of its divisors is an integer number (3613701).

Almost surely, 2^55589157 is an apocalyptic number.

It is an amenable number.

55589157 is a deficient number, since it is larger than the sum of its proper divisors (31139667).

55589157 is a wasteful number, since it uses less digits than its factorization.

55589157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429 (or 1426 counting only the distinct ones).

The product of its digits is 315000, while the sum is 45.

The square root of 55589157 is about 7455.8136376924. The cubic root of 55589157 is about 381.6483267843.

The spelling of 55589157 in words is "fifty-five million, five hundred eighty-nine thousand, one hundred fifty-seven".