47625511 has 4 divisors (see below), whose sum is σ = 49267800. Its totient is φ = 45983224.

The previous prime is 47625509. The next prime is 47625521. The reversal of 47625511 is 11552674.

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 47625511 - 2¹ = 47625509 is a prime.

It is a super-2 number, since 2×47625511² = 4536378596022242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47625521) 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, 821101 + ... + 821158.

It is an arithmetic number, because the mean of its divisors is an integer number (12316950).

Almost surely, 2^47625511 is an apocalyptic number.

47625511 is a deficient number, since it is larger than the sum of its proper divisors (1642289).

47625511 is a wasteful number, since it uses less digits than its factorization.

47625511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642288.

The product of its digits is 8400, while the sum is 31.

The square root of 47625511 is about 6901.1238939755. The cubic root of 47625511 is about 362.4765226174.

The spelling of 47625511 in words is "forty-seven million, six hundred twenty-five thousand, five hundred eleven".