61425243 has 16 divisors (see below), whose sum is σ = 99273600. Its totient is φ = 37227240.

The previous prime is 61425241. The next prime is 61425253. The reversal of 61425243 is 34252416.

61425243 is a `hidden beast` number, since 614 + 2 + 5 + 2 + 43 = 666.

It is not a de Polignac number, because 61425243 - 2¹ = 61425241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61425241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103113 + ... + 103706.

It is an arithmetic number, because the mean of its divisors is an integer number (6204600).

Almost surely, 2^61425243 is an apocalyptic number.

61425243 is a deficient number, since it is larger than the sum of its proper divisors (37848357).

61425243 is a wasteful number, since it uses less digits than its factorization.

61425243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206839 (or 206833 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 61425243 is about 7837.4257891223. The cubic root of 61425243 is about 394.5623374435.

Adding to 61425243 its reverse (34252416), we get a palindrome (95677659).

The spelling of 61425243 in words is "sixty-one million, four hundred twenty-five thousand, two hundred forty-three".