55501432 has 32 divisors (see below), whose sum is σ = 125193600. Its totient is φ = 22533984.

The previous prime is 55501429. The next prime is 55501469. The reversal of 55501432 is 23410555.

It is a junction number, because it is equal to n+sod(n) for n = 55501397 and 55501406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25018 + ... + 27145.

It is an arithmetic number, because the mean of its divisors is an integer number (3912300).

Almost surely, 2^55501432 is an apocalyptic number.

It is an amenable number.

55501432 is an abundant number, since it is smaller than the sum of its proper divisors (69692168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55501432 is a wasteful number, since it uses less digits than its factorization.

55501432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52195 (or 52191 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55501432 is about 7449.9283218028. The cubic root of 55501432 is about 381.4474619135.

Adding to 55501432 its reverse (23410555), we get a palindrome (78911987).

The spelling of 55501432 in words is "fifty-five million, five hundred one thousand, four hundred thirty-two".