61018425 has 72 divisors (see below), whose sum is σ = 122950464. Its totient is φ = 28702080.

The previous prime is 61018417. The next prime is 61018429. The reversal of 61018425 is 52481016.

61018425 = 96³ + 97³ + ... + 134³.

61018425 is a `hidden beast` number, since 610 + 1 + 8 + 42 + 5 = 666.

It is not a de Polignac number, because 61018425 - 2³ = 61018417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61018429) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 66822 + ... + 67728.

Almost surely, 2^61018425 is an apocalyptic number.

61018425 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61018425 is an abundant number, since it is smaller than the sum of its proper divisors (61932039).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61018425 is a wasteful number, since it uses less digits than its factorization.

61018425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 951 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 61018425 is about 7811.4291266067. The cubic root of 61018425 is about 393.6893481787.

The spelling of 61018425 in words is "sixty-one million, eighteen thousand, four hundred twenty-five".