55849731 has 8 divisors (see below), whose sum is σ = 85104384. Its totient is φ = 31914120.

The previous prime is 55849723. The next prime is 55849741. The reversal of 55849731 is 13794855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55849731 - 2³ = 55849723 is a prime.

It is a super-2 number, since 2×55849731² = 6238384905544722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55849741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1329735 + ... + 1329776.

It is an arithmetic number, because the mean of its divisors is an integer number (10638048).

Almost surely, 2^55849731 is an apocalyptic number.

55849731 is a deficient number, since it is larger than the sum of its proper divisors (29254653).

55849731 is a wasteful number, since it uses less digits than its factorization.

55849731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659521.

The product of its digits is 151200, while the sum is 42.

The square root of 55849731 is about 7473.2677591533. The cubic root of 55849731 is about 382.2437225595.

The spelling of 55849731 in words is "fifty-five million, eight hundred forty-nine thousand, seven hundred thirty-one".