61225737 has 8 divisors (see below), whose sum is σ = 81841536. Its totient is φ = 40713552.

The previous prime is 61225729. The next prime is 61225741. The reversal of 61225737 is 73752216.

61225737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61225737 - 2³ = 61225729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61225698 and 61225707.

It is not an unprimeable number, because it can be changed into a prime (61225777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24513 + ... + 26894.

It is an arithmetic number, because the mean of its divisors is an integer number (10230192).

Almost surely, 2^61225737 is an apocalyptic number.

It is an amenable number.

61225737 is a deficient number, since it is larger than the sum of its proper divisors (20615799).

61225737 is a wasteful number, since it uses less digits than its factorization.

61225737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51807.

The product of its digits is 17640, while the sum is 33.

The square root of 61225737 is about 7824.6876614981. The cubic root of 61225737 is about 394.1347014670.

The spelling of 61225737 in words is "sixty-one million, two hundred twenty-five thousand, seven hundred thirty-seven".