55747398 has 24 divisors (see below), whose sum is σ = 129698712. Its totient is φ = 15927744.

The previous prime is 55747379. The next prime is 55747427. The reversal of 55747398 is 89374755.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94515 + ... + 95102.

It is an arithmetic number, because the mean of its divisors is an integer number (5404113).

Almost surely, 2^55747398 is an apocalyptic number.

55747398 is an abundant number, since it is smaller than the sum of its proper divisors (73951314).

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

55747398 is a wasteful number, since it uses less digits than its factorization.

55747398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189636 (or 189629 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 55747398 is about 7466.4180166931. The cubic root of 55747398 is about 382.0101191548.

The spelling of 55747398 in words is "fifty-five million, seven hundred forty-seven thousand, three hundred ninety-eight".