47923251 has 16 divisors (see below), whose sum is σ = 65994144. Its totient is φ = 30910464.

The previous prime is 47923243. The next prime is 47923261. The reversal of 47923251 is 15232974.

It is not a de Polignac number, because 47923251 - 2³ = 47923243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47923201) 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, 20305 + ... + 22541.

It is an arithmetic number, because the mean of its divisors is an integer number (4124634).

Almost surely, 2^47923251 is an apocalyptic number.

47923251 is a deficient number, since it is larger than the sum of its proper divisors (18070893).

47923251 is a wasteful number, since it uses less digits than its factorization.

47923251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470.

The product of its digits is 15120, while the sum is 33.

The square root of 47923251 is about 6922.6621324459. The cubic root of 47923251 is about 363.2303177540.

The spelling of 47923251 in words is "forty-seven million, nine hundred twenty-three thousand, two hundred fifty-one".