61240512 has 56 divisors (see below), whose sum is σ = 162616896. Its totient is φ = 20339968.

The previous prime is 61240453. The next prime is 61240537. The reversal of 61240512 is 21504216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89323 + ... + 90005.

Almost surely, 2^61240512 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 61240512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81308448).

61240512 is an abundant number, since it is smaller than the sum of its proper divisors (101376384).

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

61240512 is a wasteful number, since it uses less digits than its factorization.

61240512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 61240512 is about 7825.6317316879. The cubic root of 61240512 is about 394.1664031234.

Adding to 61240512 its reverse (21504216), we get a palindrome (82744728).

The spelling of 61240512 in words is "sixty-one million, two hundred forty thousand, five hundred twelve".