61910051 has 8 divisors (see below), whose sum is σ = 70815840. Its totient is φ = 53019648.

The previous prime is 61910027. The next prime is 61910053. The reversal of 61910051 is 15001916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61910051 - 2⁶ = 61909987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61909999 and 61910026.

It is not an unprimeable number, because it can be changed into a prime (61910053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6725 + ... + 13001.

It is an arithmetic number, because the mean of its divisors is an integer number (8851980).

Almost surely, 2^61910051 is an apocalyptic number.

61910051 is a deficient number, since it is larger than the sum of its proper divisors (8905789).

61910051 is a wasteful number, since it uses less digits than its factorization.

61910051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7693.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 61910051 is about 7868.2940336518. The cubic root of 61910051 is about 395.5976659703.

Adding to 61910051 its reverse (15001916), we get a palindrome (76911967).

The spelling of 61910051 in words is "sixty-one million, nine hundred ten thousand, fifty-one".