55943970 has 32 divisors (see below), whose sum is σ = 134464320. Its totient is φ = 14896320.

The previous prime is 55943969. The next prime is 55943971. The reversal of 55943970 is 7934955.

It is an interprime number because it is at equal distance from previous prime (55943969) and next prime (55943971).

It is not an unprimeable number, because it can be changed into a prime (55943971) 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, 34641 + ... + 36219.

It is an arithmetic number, because the mean of its divisors is an integer number (4202010).

Almost surely, 2^55943970 is an apocalyptic number.

55943970 is an abundant number, since it is smaller than the sum of its proper divisors (78520350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55943970 is a wasteful number, since it uses less digits than its factorization.

55943970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 55943970 is about 7479.5701748162. The cubic root of 55943970 is about 382.4585969112.

The spelling of 55943970 in words is "fifty-five million, nine hundred forty-three thousand, nine hundred seventy".