61813050 has 48 divisors (see below), whose sum is σ = 165093600. Its totient is φ = 15215040.

The previous prime is 61813043. The next prime is 61813057. The reversal of 61813050 is 5031816.

It is an interprime number because it is at equal distance from previous prime (61813043) and next prime (61813057).

It is a self number, because there is not a number n which added to its sum of digits gives 61813050.

It is not an unprimeable number, because it can be changed into a prime (61813057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13900 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (3439450).

Almost surely, 2^61813050 is an apocalyptic number.

61813050 is an abundant number, since it is smaller than the sum of its proper divisors (103280550).

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

61813050 is a wasteful number, since it uses less digits than its factorization.

61813050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31727 (or 31722 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 61813050 is about 7862.1275746454. The cubic root of 61813050 is about 395.3909497896.

Adding to 61813050 its reverse (5031816), we get a palindrome (66844866).

The spelling of 61813050 in words is "sixty-one million, eight hundred thirteen thousand, fifty".