47621533 has 4 divisors (see below), whose sum is σ = 47776960. Its totient is φ = 47466108.

The previous prime is 47621521. The next prime is 47621551. The reversal of 47621533 is 33512674.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47621533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47621495 and 47621504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47621503) 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, 77253 + ... + 77866.

It is an arithmetic number, because the mean of its divisors is an integer number (11944240).

Almost surely, 2^47621533 is an apocalyptic number.

It is an amenable number.

47621533 is a deficient number, since it is larger than the sum of its proper divisors (155427).

47621533 is a wasteful number, since it uses less digits than its factorization.

47621533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155426.

The product of its digits is 15120, while the sum is 31.

The square root of 47621533 is about 6900.8356740325. The cubic root of 47621533 is about 362.4664301850.

The spelling of 47621533 in words is "forty-seven million, six hundred twenty-one thousand, five hundred thirty-three".