61361225 has 12 divisors (see below), whose sum is σ = 76274880. Its totient is φ = 48968400.

The previous prime is 61361219. The next prime is 61361231. The reversal of 61361225 is 52216316.

It is an interprime number because it is at equal distance from previous prime (61361219) and next prime (61361231).

It is not a de Polignac number, because 61361225 - 2⁶ = 61361161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61361194 and 61361203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8180 + ... + 13770.

It is an arithmetic number, because the mean of its divisors is an integer number (6356240).

Almost surely, 2^61361225 is an apocalyptic number.

It is an amenable number.

61361225 is a deficient number, since it is larger than the sum of its proper divisors (14913655).

61361225 is a wasteful number, since it uses less digits than its factorization.

61361225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040 (or 6035 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 61361225 is about 7833.3406028335. The cubic root of 61361225 is about 394.4252175306.

The spelling of 61361225 in words is "sixty-one million, three hundred sixty-one thousand, two hundred twenty-five".