61951051 has 12 divisors (see below), whose sum is σ = 65358912. Its totient is φ = 58644000.

The previous prime is 61951033. The next prime is 61951063. The reversal of 61951051 is 15015916.

61951051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61951051 - 2²⁵ = 28396619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61951091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342181 + ... + 342361.

It is an arithmetic number, because the mean of its divisors is an integer number (5446576).

Almost surely, 2^61951051 is an apocalyptic number.

61951051 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

61951051 is a deficient number, since it is larger than the sum of its proper divisors (3407861).

61951051 is an equidigital number, since it uses as much as digits as its factorization.

61951051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 61951051 is about 7870.8989956675. The cubic root of 61951051 is about 395.6849750308.

Adding to 61951051 its reverse (15015916), we get a palindrome (76966967).

The spelling of 61951051 in words is "sixty-one million, nine hundred fifty-one thousand, fifty-one".