61249653 has 12 divisors (see below), whose sum is σ = 91522860. Its totient is φ = 39424896.

The previous prime is 61249651. The next prime is 61249663. The reversal of 61249653 is 35694216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10227204 + 51022449 = 3198^2 + 7143^2 .

It is not a de Polignac number, because 61249653 - 2¹ = 61249651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61249651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117076 + ... + 117597.

It is an arithmetic number, because the mean of its divisors is an integer number (7626905).

Almost surely, 2^61249653 is an apocalyptic number.

It is an amenable number.

61249653 is a deficient number, since it is larger than the sum of its proper divisors (30273207).

61249653 is a wasteful number, since it uses less digits than its factorization.

61249653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234708 (or 234705 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 61249653 is about 7826.2157522011. The cubic root of 61249653 is about 394.1860137576.

The spelling of 61249653 in words is "sixty-one million, two hundred forty-nine thousand, six hundred fifty-three".