55641830 has 16 divisors (see below), whose sum is σ = 104510304. Its totient is φ = 21288960.

The previous prime is 55641827. The next prime is 55641847. The reversal of 55641830 is 3814655.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120731 + ... + 121190.

It is an arithmetic number, because the mean of its divisors is an integer number (6531894).

Almost surely, 2^55641830 is an apocalyptic number.

55641830 is a deficient number, since it is larger than the sum of its proper divisors (48868474).

55641830 is a wasteful number, since it uses less digits than its factorization.

55641830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241951.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 55641830 is about 7459.3451455205. The cubic root of 55641830 is about 381.7688311981.

The spelling of 55641830 in words is "fifty-five million, six hundred forty-one thousand, eight hundred thirty".