55432156 has 24 divisors (see below), whose sum is σ = 104675760. Its totient is φ = 25533312.

The previous prime is 55432151. The next prime is 55432159. The reversal of 55432156 is 65123455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55432151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42360 + ... + 43648.

It is an arithmetic number, because the mean of its divisors is an integer number (4361490).

Almost surely, 2^55432156 is an apocalyptic number.

It is an amenable number.

55432156 is a deficient number, since it is larger than the sum of its proper divisors (49243604).

55432156 is a wasteful number, since it uses less digits than its factorization.

55432156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133 (or 2131 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 55432156 is about 7445.2774293508. The cubic root of 55432156 is about 381.2886902955.

The spelling of 55432156 in words is "fifty-five million, four hundred thirty-two thousand, one hundred fifty-six".