670020550 has 24 divisors (see below), whose sum is σ = 1247371056. Its totient is φ = 267764640.

The previous prime is 670020517. The next prime is 670020581. The reversal of 670020550 is 55020076.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55672 + ... + 66628.

It is an arithmetic number, because the mean of its divisors is an integer number (51973794).

Almost surely, 2^670020550 is an apocalyptic number.

670020550 is a deficient number, since it is larger than the sum of its proper divisors (577350506).

670020550 is a wasteful number, since it uses less digits than its factorization.

670020550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12192 (or 12187 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 670020550 is about 25884.7551659273. The cubic root of 670020550 is about 875.0429584351.

The spelling of 670020550 in words is "six hundred seventy million, twenty thousand, five hundred fifty".