61203536 has 40 divisors (see below), whose sum is σ = 127116864. Its totient is φ = 28444160.

The previous prime is 61203533. The next prime is 61203539. The reversal of 61203536 is 63530216.

It is an interprime number because it is at equal distance from previous prime (61203533) and next prime (61203539).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61203533) 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, 21221 + ... + 23931.

Almost surely, 2^61203536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61203536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63558432).

61203536 is an abundant number, since it is smaller than the sum of its proper divisors (65913328).

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

61203536 is a wasteful number, since it uses less digits than its factorization.

61203536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 61203536 is about 7823.2688819956. The cubic root of 61203536 is about 394.0870567847.

The spelling of 61203536 in words is "sixty-one million, two hundred three thousand, five hundred thirty-six".