61074253 has 4 divisors (see below), whose sum is σ = 61096860. Its totient is φ = 61051648.

The previous prime is 61074241. The next prime is 61074257. The reversal of 61074253 is 35247016.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48135844 + 12938409 = 6938^2 + 3597^2 .

It is a cyclic number.

It is not a de Polignac number, because 61074253 - 2²¹ = 58977101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61074257) 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, 6598 + ... + 12871.

It is an arithmetic number, because the mean of its divisors is an integer number (15274215).

Almost surely, 2^61074253 is an apocalyptic number.

It is an amenable number.

61074253 is a deficient number, since it is larger than the sum of its proper divisors (22607).

61074253 is a wasteful number, since it uses less digits than its factorization.

61074253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22606.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 61074253 is about 7815.0017914265. The cubic root of 61074253 is about 393.8093785315.

Subtracting from 61074253 its sum of digits (28), we obtain a square (61074225 = 7815²).

The spelling of 61074253 in words is "sixty-one million, seventy-four thousand, two hundred fifty-three".