55799039 has 4 divisors (see below), whose sum is σ = 57599040. Its totient is φ = 53999040.

The previous prime is 55799027. The next prime is 55799041. The reversal of 55799039 is 93099755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55799039 - 2⁸ = 55798783 is a prime.

It is a super-2 number, since 2×55799039² = 6227065506647042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55798984 and 55799002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55799059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 899954 + ... + 900015.

It is an arithmetic number, because the mean of its divisors is an integer number (14399760).

Almost surely, 2^55799039 is an apocalyptic number.

55799039 is a deficient number, since it is larger than the sum of its proper divisors (1800001).

55799039 is a wasteful number, since it uses less digits than its factorization.

55799039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800000.

The product of its (nonzero) digits is 382725, while the sum is 47.

The square root of 55799039 is about 7469.8754340350. The cubic root of 55799039 is about 382.1280397334.

The spelling of 55799039 in words is "fifty-five million, seven hundred ninety-nine thousand, thirty-nine".