61502801 has 4 divisors (see below), whose sum is σ = 61519872. Its totient is φ = 61485732.

The previous prime is 61502783. The next prime is 61502807. The reversal of 61502801 is 10820516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61502801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61502807) 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, 785 + ... + 11118.

It is an arithmetic number, because the mean of its divisors is an integer number (15379968).

Almost surely, 2^61502801 is an apocalyptic number.

It is an amenable number.

61502801 is a deficient number, since it is larger than the sum of its proper divisors (17071).

61502801 is a wasteful number, since it uses less digits than its factorization.

61502801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17070.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 61502801 is about 7842.3721538830. The cubic root of 61502801 is about 394.7283310630.

The spelling of 61502801 in words is "sixty-one million, five hundred two thousand, eight hundred one".