61625207 has 4 divisors (see below), whose sum is σ = 70428816. Its totient is φ = 52821600.

The previous prime is 61625197. The next prime is 61625219. The reversal of 61625207 is 70252616.

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

It is a cyclic number.

It is not a de Polignac number, because 61625207 - 2⁴ = 61625191 is a prime.

It is a super-2 number, since 2×61625207² = 7595332275585698, which contains 22 as substring.

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 61625207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61625297) 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, 4401794 + ... + 4401807.

It is an arithmetic number, because the mean of its divisors is an integer number (17607204).

Almost surely, 2^61625207 is an apocalyptic number.

61625207 is a deficient number, since it is larger than the sum of its proper divisors (8803609).

61625207 is an equidigital number, since it uses as much as digits as its factorization.

61625207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803608.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 61625207 is about 7850.1724184887. The cubic root of 61625207 is about 394.9900269874.

The spelling of 61625207 in words is "sixty-one million, six hundred twenty-five thousand, two hundred seven".