55723670 has 32 divisors (see below), whose sum is σ = 104416128. Its totient is φ = 21394048.

The previous prime is 55723667. The next prime is 55723673. The reversal of 55723670 is 7632755.

It is an interprime number because it is at equal distance from previous prime (55723667) and next prime (55723673).

It is a self number, because there is not a number n which added to its sum of digits gives 55723670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55723673) 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, 23792 + ... + 26028.

It is an arithmetic number, because the mean of its divisors is an integer number (3263004).

Almost surely, 2^55723670 is an apocalyptic number.

55723670 is a deficient number, since it is larger than the sum of its proper divisors (48692458).

55723670 is a wasteful number, since it uses less digits than its factorization.

55723670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 55723670 is about 7464.8288660893. The cubic root of 55723670 is about 381.9559126043.

The spelling of 55723670 in words is "fifty-five million, seven hundred twenty-three thousand, six hundred seventy".