47725031 has 4 divisors (see below), whose sum is σ = 47749464. Its totient is φ = 47700600.

The previous prime is 47725019. The next prime is 47725033. The reversal of 47725031 is 13052774.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47725031 - 2¹⁸ = 47462887 is a prime.

It is a super-2 number, since 2×47725031² = 4555357167901922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47724985 and 47725003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47725033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9005 + ... + 13286.

It is an arithmetic number, because the mean of its divisors is an integer number (11937366).

Almost surely, 2^47725031 is an apocalyptic number.

47725031 is a deficient number, since it is larger than the sum of its proper divisors (24433).

47725031 is a wasteful number, since it uses less digits than its factorization.

47725031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24432.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 47725031 is about 6908.3305508639. The cubic root of 47725031 is about 362.7288283317.

The spelling of 47725031 in words is "forty-seven million, seven hundred twenty-five thousand, thirty-one".