61472311 has 4 divisors (see below), whose sum is σ = 61921152. Its totient is φ = 61023472.

The previous prime is 61472303. The next prime is 61472317. The reversal of 61472311 is 11327416.

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

It is a cyclic number.

It is not a de Polignac number, because 61472311 - 2³ = 61472303 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 (61472317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224215 + ... + 224488.

It is an arithmetic number, because the mean of its divisors is an integer number (15480288).

Almost surely, 2^61472311 is an apocalyptic number.

61472311 is a deficient number, since it is larger than the sum of its proper divisors (448841).

61472311 is a wasteful number, since it uses less digits than its factorization.

61472311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448840.

The product of its digits is 1008, while the sum is 25.

The square root of 61472311 is about 7840.4279857671. The cubic root of 61472311 is about 394.6630914533.

Adding to 61472311 its reverse (11327416), we get a palindrome (72799727).

The spelling of 61472311 in words is "sixty-one million, four hundred seventy-two thousand, three hundred eleven".