47225820 has 48 divisors (see below), whose sum is σ = 132602400. Its totient is φ = 12558336.

The previous prime is 47225819. The next prime is 47225837. The reversal of 47225820 is 2852274.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26064 + ... + 27816.

It is an arithmetic number, because the mean of its divisors is an integer number (2762550).

Almost surely, 2^47225820 is an apocalyptic number.

It is an amenable number.

47225820 is an abundant number, since it is smaller than the sum of its proper divisors (85376580).

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

47225820 is a wasteful number, since it uses less digits than its factorization.

47225820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214 (or 2212 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 47225820 is about 6872.1044811615. The cubic root of 47225820 is about 361.4596600667.

The spelling of 47225820 in words is "forty-seven million, two hundred twenty-five thousand, eight hundred twenty".