61254493 has 2 divisors, whose sum is σ = 61254494. Its totient is φ = 61254492.

The previous prime is 61254463. The next prime is 61254503. The reversal of 61254493 is 39445216.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34597924 + 26656569 = 5882^2 + 5163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61254493 is a prime.

It is a super-2 number, since 2×61254493² = 7504225825374098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61254443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30627246 + 30627247.

It is an arithmetic number, because the mean of its divisors is an integer number (30627247).

Almost surely, 2^61254493 is an apocalyptic number.

It is an amenable number.

61254493 is a deficient number, since it is larger than the sum of its proper divisors (1).

61254493 is an equidigital number, since it uses as much as digits as its factorization.

61254493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 61254493 is about 7826.5249632260. The cubic root of 61254493 is about 394.1963964562.

The spelling of 61254493 in words is "sixty-one million, two hundred fifty-four thousand, four hundred ninety-three".