61425797 has 4 divisors (see below), whose sum is σ = 61552416. Its totient is φ = 61299180.

The previous prime is 61425737. The next prime is 61425817. The reversal of 61425797 is 79752416.

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 not a de Polignac number, because 61425797 - 2⁶ = 61425733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61425737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62579 + ... + 63552.

It is an arithmetic number, because the mean of its divisors is an integer number (15388104).

Almost surely, 2^61425797 is an apocalyptic number.

It is an amenable number.

61425797 is a deficient number, since it is larger than the sum of its proper divisors (126619).

61425797 is a wasteful number, since it uses less digits than its factorization.

61425797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126618.

The product of its digits is 105840, while the sum is 41.

The square root of 61425797 is about 7837.4611322800. The cubic root of 61425797 is about 394.5635236381.

The spelling of 61425797 in words is "sixty-one million, four hundred twenty-five thousand, seven hundred ninety-seven".