55699237 has 8 divisors (see below), whose sum is σ = 61909920. Its totient is φ = 49679760.

The previous prime is 55699201. The next prime is 55699247. The reversal of 55699237 is 73299655.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55699237 - 2¹⁹ = 55174949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55699247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47187 + ... + 48352.

It is an arithmetic number, because the mean of its divisors is an integer number (7738740).

Almost surely, 2^55699237 is an apocalyptic number.

It is an amenable number.

55699237 is a deficient number, since it is larger than the sum of its proper divisors (6210683).

55699237 is a wasteful number, since it uses less digits than its factorization.

55699237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95603.

The product of its digits is 510300, while the sum is 46.

The square root of 55699237 is about 7463.1921454563. The cubic root of 55699237 is about 381.9000794002.

The spelling of 55699237 in words is "fifty-five million, six hundred ninety-nine thousand, two hundred thirty-seven".