61426500 has 96 divisors (see below), whose sum is σ = 184783872. Its totient is φ = 15840000.

The previous prime is 61426447. The next prime is 61426501. The reversal of 61426500 is 562416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61426501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45840 + ... + 47160.

It is an arithmetic number, because the mean of its divisors is an integer number (1924832).

Almost surely, 2^61426500 is an apocalyptic number.

61426500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61426500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92391936).

61426500 is an abundant number, since it is smaller than the sum of its proper divisors (123357372).

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

61426500 is a wasteful number, since it uses less digits than its factorization.

61426500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374 (or 1362 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 61426500 is about 7837.5059808590. The cubic root of 61426500 is about 394.5650288531.

Adding to 61426500 its reverse (562416), we get a palindrome (61988916).

The spelling of 61426500 in words is "sixty-one million, four hundred twenty-six thousand, five hundred".