61799506 has 4 divisors (see below), whose sum is σ = 92699262. Its totient is φ = 30899752.

The previous prime is 61799503. The next prime is 61799561. The reversal of 61799506 is 60599716.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60980481 + 819025 = 7809^2 + 905^2 .

It is not an unprimeable number, because it can be changed into a prime (61799503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15449875 + ... + 15449878.

Almost surely, 2^61799506 is an apocalyptic number.

61799506 is a deficient number, since it is larger than the sum of its proper divisors (30899756).

61799506 is a wasteful number, since it uses less digits than its factorization.

61799506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30899755.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 61799506 is about 7861.2661830013. The cubic root of 61799506 is about 395.3620693391.

The spelling of 61799506 in words is "sixty-one million, seven hundred ninety-nine thousand, five hundred six".