61767625 has 8 divisors (see below), whose sum is σ = 77086152. Its totient is φ = 49414000.

The previous prime is 61767617. The next prime is 61767649. The reversal of 61767625 is 52676716.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11343424 + 50424201 = 3368^2 + 7101^2 .

It is not a de Polignac number, because 61767625 - 2³ = 61767617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246946 + ... + 247195.

It is an arithmetic number, because the mean of its divisors is an integer number (9635769).

Almost surely, 2^61767625 is an apocalyptic number.

It is an amenable number.

61767625 is a deficient number, since it is larger than the sum of its proper divisors (15318527).

61767625 is an equidigital number, since it uses as much as digits as its factorization.

61767625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494156 (or 494146 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 61767625 is about 7859.2381946344. The cubic root of 61767625 is about 395.2940714589.

Subtracting from 61767625 its reverse (52676716), we obtain a palindrome (9090909).

The spelling of 61767625 in words is "sixty-one million, seven hundred sixty-seven thousand, six hundred twenty-five".