61651050 has 24 divisors (see below), whose sum is σ = 152894976. Its totient is φ = 16440240.

The previous prime is 61651049. The next prime is 61651069. The reversal of 61651050 is 5015616.

It is a super-2 number, since 2×61651050² = 7601703932205000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61651050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205354 + ... + 205653.

It is an arithmetic number, because the mean of its divisors is an integer number (6370624).

Almost surely, 2^61651050 is an apocalyptic number.

61651050 is an abundant number, since it is smaller than the sum of its proper divisors (91243926).

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

61651050 is a wasteful number, since it uses less digits than its factorization.

61651050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411022 (or 411017 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 61651050 is about 7851.8182607597. The cubic root of 61651050 is about 395.0452332967.

Adding to 61651050 its reverse (5015616), we get a palindrome (66666666).

The spelling of 61651050 in words is "sixty-one million, six hundred fifty-one thousand, fifty".