55374999 has 16 divisors (see below), whose sum is σ = 75195360. Its totient is φ = 36241920.

The previous prime is 55374941. The next prime is 55375003. The reversal of 55374999 is 99947355.

It is a happy number.

It is not a de Polignac number, because 55374999 - 2⁸ = 55374743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55374199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41259 + ... + 42579.

It is an arithmetic number, because the mean of its divisors is an integer number (4699710).

Almost surely, 2^55374999 is an apocalyptic number.

55374999 is a deficient number, since it is larger than the sum of its proper divisors (19820361).

55374999 is a wasteful number, since it uses less digits than its factorization.

55374999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570.

The product of its digits is 1530900, while the sum is 51.

The square root of 55374999 is about 7441.4379658773. The cubic root of 55374999 is about 381.1575942312.

The spelling of 55374999 in words is "fifty-five million, three hundred seventy-four thousand, nine hundred ninety-nine".