61888536 has 40 divisors (see below), whose sum is σ = 173347020. Its totient is φ = 20629296.

The previous prime is 61888513. The next prime is 61888537. The reversal of 61888536 is 63588816.

It is a junction number, because it is equal to n+sod(n) for n = 61888491 and 61888500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61888537) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 47106 + ... + 48401.

Almost surely, 2^61888536 is an apocalyptic number.

It is an amenable number.

61888536 is an abundant number, since it is smaller than the sum of its proper divisors (111458484).

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

61888536 is a wasteful number, since it uses less digits than its factorization.

61888536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95525 (or 95512 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 61888536 is about 7866.9267188655. The cubic root of 61888536 is about 395.5518345865.

The spelling of 61888536 in words is "sixty-one million, eight hundred eighty-eight thousand, five hundred thirty-six".