61950957 has 4 divisors (see below), whose sum is σ = 82601280. Its totient is φ = 41300636.

The previous prime is 61950901. The next prime is 61950991. The reversal of 61950957 is 75905916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61950957 - 2¹⁰ = 61949933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61950997) 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, 10325157 + ... + 10325162.

It is an arithmetic number, because the mean of its divisors is an integer number (20650320).

Almost surely, 2^61950957 is an apocalyptic number.

It is an amenable number.

61950957 is a deficient number, since it is larger than the sum of its proper divisors (20650323).

61950957 is a wasteful number, since it uses less digits than its factorization.

61950957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20650322.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 61950957 is about 7870.8930243016. The cubic root of 61950957 is about 395.6847749028.

The spelling of 61950957 in words is "sixty-one million, nine hundred fifty thousand, nine hundred fifty-seven".