60990953 has 4 divisors (see below), whose sum is σ = 61016148. Its totient is φ = 60965760.

The previous prime is 60990949. The next prime is 60990961. The reversal of 60990953 is 35909906.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33028009 + 27962944 = 5747^2 + 5288^2 .

It is a cyclic number.

It is not a de Polignac number, because 60990953 - 2² = 60990949 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 60990953.

It is not an unprimeable number, because it can be changed into a prime (60990053) 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, 8528 + ... + 13953.

It is an arithmetic number, because the mean of its divisors is an integer number (15254037).

Almost surely, 2^60990953 is an apocalyptic number.

It is an amenable number.

60990953 is a deficient number, since it is larger than the sum of its proper divisors (25195).

60990953 is a wasteful number, since it uses less digits than its factorization.

60990953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25194.

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 60990953 is about 7809.6704796041. The cubic root of 60990953 is about 393.6302564245.

The spelling of 60990953 in words is "sixty million, nine hundred ninety thousand, nine hundred fifty-three".