61025651 has 4 divisors (see below), whose sum is σ = 61057032. Its totient is φ = 60994272.

The previous prime is 61025633. The next prime is 61025669. The reversal of 61025651 is 15652016.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61025633) and next prime (61025669).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61025651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61025651.

It is not an unprimeable number, because it can be changed into a prime (61025611) 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, 12566 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (15264258).

Almost surely, 2^61025651 is an apocalyptic number.

61025651 is a deficient number, since it is larger than the sum of its proper divisors (31381).

61025651 is a wasteful number, since it uses less digits than its factorization.

61025651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31380.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 61025651 is about 7811.8916403135. The cubic root of 61025651 is about 393.7048882222.

Adding to 61025651 its reverse (15652016), we get a palindrome (76677667).

The spelling of 61025651 in words is "sixty-one million, twenty-five thousand, six hundred fifty-one".