61255237 has 4 divisors (see below), whose sum is σ = 61631200. Its totient is φ = 60879276.

The previous prime is 61255231. The next prime is 61255247. The reversal of 61255237 is 73255216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61255237 - 2⁷ = 61255109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61255199 and 61255208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61255231) 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, 187737 + ... + 188062.

It is an arithmetic number, because the mean of its divisors is an integer number (15407800).

Almost surely, 2^61255237 is an apocalyptic number.

It is an amenable number.

61255237 is a deficient number, since it is larger than the sum of its proper divisors (375963).

61255237 is a wasteful number, since it uses less digits than its factorization.

61255237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375962.

The product of its digits is 12600, while the sum is 31.

The square root of 61255237 is about 7826.5724937548. The cubic root of 61255237 is about 394.1979924258.

The spelling of 61255237 in words is "sixty-one million, two hundred fifty-five thousand, two hundred thirty-seven".