61492563 has 18 divisors (see below), whose sum is σ = 97633172. Its totient is φ = 37267560.

The previous prime is 61492559. The next prime is 61492567. The reversal of 61492563 is 36529416.

It is a happy number.

61492563 is a `hidden beast` number, since 6 + 1 + 4 + 92 + 563 = 666.

It is an interprime number because it is at equal distance from previous prime (61492559) and next prime (61492567).

It is not a de Polignac number, because 61492563 - 2² = 61492559 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61492567) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27145 + ... + 29322.

Almost surely, 2^61492563 is an apocalyptic number.

61492563 is a deficient number, since it is larger than the sum of its proper divisors (36140609).

61492563 is a wasteful number, since it uses less digits than its factorization.

61492563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56495 (or 56481 counting only the distinct ones).

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

The square root of 61492563 is about 7841.7193905418. The cubic root of 61492563 is about 394.7064271667.

The spelling of 61492563 in words is "sixty-one million, four hundred ninety-two thousand, five hundred sixty-three".