61030263 has 32 divisors (see below), whose sum is σ = 96671232. Its totient is φ = 33523200.

The previous prime is 61030243. The next prime is 61030309. The reversal of 61030263 is 36203016.

It is not a de Polignac number, because 61030263 - 2⁶ = 61030199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61030213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62368 + ... + 63338.

It is an arithmetic number, because the mean of its divisors is an integer number (3020976).

Almost surely, 2^61030263 is an apocalyptic number.

61030263 is a deficient number, since it is larger than the sum of its proper divisors (35640969).

61030263 is a wasteful number, since it uses less digits than its factorization.

61030263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 61030263 is about 7812.1868257230. The cubic root of 61030263 is about 393.7148060255.

Adding to 61030263 its reverse (36203016), we get a palindrome (97233279).

The spelling of 61030263 in words is "sixty-one million, thirty thousand, two hundred sixty-three".