61355425 has 12 divisors (see below), whose sum is σ = 76183740. Its totient is φ = 49017920.

The previous prime is 61355423. The next prime is 61355471. The reversal of 61355425 is 52455316.

It can be written as a sum of positive squares in 6 ways, for example, as 889249 + 60466176 = 943^2 + 7776^2 .

It is not a de Polignac number, because 61355425 - 2¹ = 61355423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61355423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26619 + ... + 28831.

It is an arithmetic number, because the mean of its divisors is an integer number (6348645).

Almost surely, 2^61355425 is an apocalyptic number.

It is an amenable number.

61355425 is a deficient number, since it is larger than the sum of its proper divisors (14828315).

61355425 is a wasteful number, since it uses less digits than its factorization.

61355425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332 (or 3327 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 61355425 is about 7832.9703816624. The cubic root of 61355425 is about 394.4127898216.

The spelling of 61355425 in words is "sixty-one million, three hundred fifty-five thousand, four hundred twenty-five".