55337690 has 24 divisors (see below), whose sum is σ = 105133140. Its totient is φ = 20968704.

The previous prime is 55337663. The next prime is 55337699. The reversal of 55337690 is 9673355.

55337690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50225569 + 5112121 = 7087^2 + 2261^2 .

It is a super-2 number, since 2×55337690² = 6124519869072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (55337699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4055 + ... + 11274.

Almost surely, 2^55337690 is an apocalyptic number.

55337690 is a deficient number, since it is larger than the sum of its proper divisors (49795450).

55337690 is a wasteful number, since it uses less digits than its factorization.

55337690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15374 (or 15355 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 55337690 is about 7438.9307027287. The cubic root of 55337690 is about 381.0719731396.

The spelling of 55337690 in words is "fifty-five million, three hundred thirty-seven thousand, six hundred ninety".