61362557 has 2 divisors, whose sum is σ = 61362558. Its totient is φ = 61362556.

The previous prime is 61362517. The next prime is 61362577. The reversal of 61362557 is 75526316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61246276 + 116281 = 7826^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 61362557 - 2¹⁰ = 61361533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61362517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30681278 + 30681279.

It is an arithmetic number, because the mean of its divisors is an integer number (30681279).

Almost surely, 2^61362557 is an apocalyptic number.

It is an amenable number.

61362557 is a deficient number, since it is larger than the sum of its proper divisors (1).

61362557 is an equidigital number, since it uses as much as digits as its factorization.

61362557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 61362557 is about 7833.4256235698. The cubic root of 61362557 is about 394.4280715077.

The spelling of 61362557 in words is "sixty-one million, three hundred sixty-two thousand, five hundred fifty-seven".