61613356 has 24 divisors (see below), whose sum is σ = 123409440. Its totient is φ = 26366592.

The previous prime is 61613351. The next prime is 61613369. The reversal of 61613356 is 65331616.

It is not an unprimeable number, because it can be changed into a prime (61613351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25530 + ... + 27838.

It is an arithmetic number, because the mean of its divisors is an integer number (5142060).

Almost surely, 2^61613356 is an apocalyptic number.

It is an amenable number.

61613356 is an abundant number, since it is smaller than the sum of its proper divisors (61796084).

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

61613356 is a wasteful number, since it uses less digits than its factorization.

61613356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273 (or 3271 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 61613356 is about 7849.4175580103. The cubic root of 61613356 is about 394.9647054935.

The spelling of 61613356 in words is "sixty-one million, six hundred thirteen thousand, three hundred fifty-six".