61500494 has 8 divisors (see below), whose sum is σ = 100637208. Its totient is φ = 27954760.

The previous prime is 61500463. The next prime is 61500521. The reversal of 61500494 is 49400516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397717 + ... + 1397760.

It is an arithmetic number, because the mean of its divisors is an integer number (12579651).

Almost surely, 2^61500494 is an apocalyptic number.

61500494 is a deficient number, since it is larger than the sum of its proper divisors (39136714).

61500494 is a wasteful number, since it uses less digits than its factorization.

61500494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795490.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 61500494 is about 7842.2250669054. The cubic root of 61500494 is about 394.7233955173.

The spelling of 61500494 in words is "sixty-one million, five hundred thousand, four hundred ninety-four".