55020070 has 16 divisors (see below), whose sum is σ = 113184288. Its totient is φ = 18864000.

The previous prime is 55020061. The next prime is 55020089. The reversal of 55020070 is 7002055.

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, 392931 + ... + 393070.

It is an arithmetic number, because the mean of its divisors is an integer number (7074018).

Almost surely, 2^55020070 is an apocalyptic number.

55020070 is an abundant number, since it is smaller than the sum of its proper divisors (58164218).

55020070 is a wasteful number, since it uses less digits than its factorization.

55020070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786015.

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 55020070 is about 7417.5514828008. The cubic root of 55020070 is about 380.3414981815.

The spelling of 55020070 in words is "fifty-five million, twenty thousand, seventy".