61507007 has 8 divisors (see below), whose sum is σ = 63599232. Its totient is φ = 59421600.

The previous prime is 61506983. The next prime is 61507013. The reversal of 61507007 is 70070516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61507007 - 2²⁴ = 44729791 is a prime.

It is a super-2 number, since 2×61507007² = 7566223820196098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61507097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22157 + ... + 24777.

It is an arithmetic number, because the mean of its divisors is an integer number (7949904).

Almost surely, 2^61507007 is an apocalyptic number.

61507007 is a deficient number, since it is larger than the sum of its proper divisors (2092225).

61507007 is a wasteful number, since it uses less digits than its factorization.

61507007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 61507007 is about 7842.6403079575. The cubic root of 61507007 is about 394.7373289703.

The spelling of 61507007 in words is "sixty-one million, five hundred seven thousand, seven".