61298653 has 4 divisors (see below), whose sum is σ = 66013948. Its totient is φ = 56583360.

The previous prime is 61298641. The next prime is 61298659. The reversal of 61298653 is 35689216.

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 20313049 + 40985604 = 4507^2 + 6402^2 .

It is a cyclic number.

It is not a de Polignac number, because 61298653 - 2²¹ = 59201501 is a prime.

It is a super-2 number, since 2×61298653² = 7515049719228818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61298659) 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, 2357628 + ... + 2357653.

It is an arithmetic number, because the mean of its divisors is an integer number (16503487).

Almost surely, 2^61298653 is an apocalyptic number.

It is an amenable number.

61298653 is a deficient number, since it is larger than the sum of its proper divisors (4715295).

61298653 is a wasteful number, since it uses less digits than its factorization.

61298653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715294.

The product of its digits is 77760, while the sum is 40.

The square root of 61298653 is about 7829.3456303832. The cubic root of 61298653 is about 394.2911026046.

The spelling of 61298653 in words is "sixty-one million, two hundred ninety-eight thousand, six hundred fifty-three".