61951411 has 4 divisors (see below), whose sum is σ = 61968424. Its totient is φ = 61934400.

The previous prime is 61951403. The next prime is 61951441. The reversal of 61951411 is 11415916.

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 61951411 - 2³ = 61951403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61951411.

It is not an unprimeable number, because it can be changed into a prime (61951441) 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, 585 + ... + 11146.

It is an arithmetic number, because the mean of its divisors is an integer number (15492106).

Almost surely, 2^61951411 is an apocalyptic number.

61951411 is a deficient number, since it is larger than the sum of its proper divisors (17013).

61951411 is a wasteful number, since it uses less digits than its factorization.

61951411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17012.

The product of its digits is 1080, while the sum is 28.

The square root of 61951411 is about 7870.9218646865. The cubic root of 61951411 is about 395.6857414763.

The spelling of 61951411 in words is "sixty-one million, nine hundred fifty-one thousand, four hundred eleven".