61513356 has 12 divisors (see below), whose sum is σ = 143531192. Its totient is φ = 20504448.

The previous prime is 61513307. The next prime is 61513373. The reversal of 61513356 is 65331516.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563045 + ... + 2563068.

Almost surely, 2^61513356 is an apocalyptic number.

It is an amenable number.

61513356 is an abundant number, since it is smaller than the sum of its proper divisors (82017836).

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

61513356 is a wasteful number, since it uses less digits than its factorization.

61513356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126120 (or 5126118 counting only the distinct ones).

The product of its digits is 8100, while the sum is 30.

The square root of 61513356 is about 7843.0450719093. The cubic root of 61513356 is about 394.7509106265.

The spelling of 61513356 in words is "sixty-one million, five hundred thirteen thousand, three hundred fifty-six".