55237692 has 48 divisors (see below), whose sum is σ = 141190560. Its totient is φ = 16730112.

The previous prime is 55237673. The next prime is 55237729. The reversal of 55237692 is 29673255.

It is a self number, because there is not a number n which added to its sum of digits gives 55237692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248 + ... + 10584.

It is an arithmetic number, because the mean of its divisors is an integer number (2941470).

Almost surely, 2^55237692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55237692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70595280).

55237692 is an abundant number, since it is smaller than the sum of its proper divisors (85952868).

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

55237692 is a wasteful number, since it uses less digits than its factorization.

55237692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9390 (or 9388 counting only the distinct ones).

The product of its digits is 113400, while the sum is 39.

The square root of 55237692 is about 7432.2064018702. The cubic root of 55237692 is about 380.8422959722.

The spelling of 55237692 in words is "fifty-five million, two hundred thirty-seven thousand, six hundred ninety-two".