61263755 has 16 divisors (see below), whose sum is σ = 84561600. Its totient is φ = 41738112.

The previous prime is 61263731. The next prime is 61263757. The reversal of 61263755 is 55736216.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61263755 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (61263757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80 + ... + 11069.

It is an arithmetic number, because the mean of its divisors is an integer number (5285100).

Almost surely, 2^61263755 is an apocalyptic number.

61263755 is a deficient number, since it is larger than the sum of its proper divisors (23297845).

61263755 is a wasteful number, since it uses less digits than its factorization.

61263755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11318.

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

The square root of 61263755 is about 7827.1166466330. The cubic root of 61263755 is about 394.2162636411.

The spelling of 61263755 in words is "sixty-one million, two hundred sixty-three thousand, seven hundred fifty-five".