61506301 has 6 divisors (see below), whose sum is σ = 64297310. Its totient is φ = 58831608.

The previous prime is 61506293. The next prime is 61506349. The reversal of 61506301 is 10360516.

It can be written as a sum of positive squares in only one way, i.e., 60435076 + 1071225 = 7774^2 + 1035^2 .

It is not a de Polignac number, because 61506301 - 2³ = 61506293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61506001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57606 + ... + 58663.

Almost surely, 2^61506301 is an apocalyptic number.

It is an amenable number.

61506301 is a deficient number, since it is larger than the sum of its proper divisors (2791009).

61506301 is a wasteful number, since it uses less digits than its factorization.

61506301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116315 (or 116292 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 61506301 is about 7842.5952974765. The cubic root of 61506301 is about 394.7358186512.

Adding to 61506301 its reverse (10360516), we get a palindrome (71866817).

The spelling of 61506301 in words is "sixty-one million, five hundred six thousand, three hundred one".