56737730 has 16 divisors (see below), whose sum is σ = 116717760. Its totient is φ = 19452912.

The previous prime is 56737699. The next prime is 56737739. The reversal of 56737730 is 3773765.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56737739) 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, 405200 + ... + 405339.

It is an arithmetic number, because the mean of its divisors is an integer number (7294860).

Almost surely, 2^56737730 is an apocalyptic number.

56737730 is an abundant number, since it is smaller than the sum of its proper divisors (59980030).

56737730 is a wasteful number, since it uses less digits than its factorization.

56737730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810553.

The product of its (nonzero) digits is 92610, while the sum is 38.

The square root of 56737730 is about 7532.4451541316. The cubic root of 56737730 is about 384.2589444500.

The spelling of 56737730 in words is "fifty-six million, seven hundred thirty-seven thousand, seven hundred thirty".