61495530 has 32 divisors (see below), whose sum is σ = 149373504. Its totient is φ = 16200576.

The previous prime is 61495519. The next prime is 61495543. The reversal of 61495530 is 3559416.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61495491 and 61495500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9859 + ... + 14838.

It is an arithmetic number, because the mean of its divisors is an integer number (4667922).

Almost surely, 2^61495530 is an apocalyptic number.

61495530 is an abundant number, since it is smaller than the sum of its proper divisors (87877974).

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

61495530 is a wasteful number, since it uses less digits than its factorization.

61495530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24790.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 61495530 is about 7841.9085687095. The cubic root of 61495530 is about 394.7127752251.

The spelling of 61495530 in words is "sixty-one million, four hundred ninety-five thousand, five hundred thirty".