61949753 has 2 divisors, whose sum is σ = 61949754. Its totient is φ = 61949752.

The previous prime is 61949737. The next prime is 61949761. The reversal of 61949753 is 35794916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58553104 + 3396649 = 7652^2 + 1843^2 .

It is a cyclic number.

It is not a de Polignac number, because 61949753 - 2⁴ = 61949737 is a prime.

It is a super-2 number, since 2×61949753² = 7675543793522018, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (61949053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30974876 + 30974877.

It is an arithmetic number, because the mean of its divisors is an integer number (30974877).

Almost surely, 2^61949753 is an apocalyptic number.

It is an amenable number.

61949753 is a deficient number, since it is larger than the sum of its proper divisors (1).

61949753 is an equidigital number, since it uses as much as digits as its factorization.

61949753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 44.

The square root of 61949753 is about 7870.8165395974. The cubic root of 61949753 is about 395.6822115442.

The spelling of 61949753 in words is "sixty-one million, nine hundred forty-nine thousand, seven hundred fifty-three".